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Apartment Bet (shown)
The high-stakes trivia game played during season 4, when Monica and Rachel's complete lack of knowledge of Chandler's profession (see ''T'') cost the ladies their home.
As an inside joke after Courteney Cox married actor David Arquette in 1999 and professionally added his surname, every name in the opening credits for season 6's ''The One After Vegas'' included the additional last name (ex. Jennifer Aniston Arquette, Matthew Perry Arquette, etc.), and the inscription ''For Courteney and David, who did get married'' appeared at the end of the episode.
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"Baby Got Back"
Against Rachel's wishes, Ross sings Sir Mix-a-Lot's 1992 rap hit to pacify baby Emma; Rachel eventually discovers she also ''like[s] big butts and cannot lie.''
Joey prepares to audition to host what is perhaps the most confusing game show ever.
Joey and Chandler's favorite show, starring Yasmine Bleeth and her bouncing breasts.
Chandler always asks, ''Could that/he/she/it be any more??''
Ross's childhood alter ego, who drinks tea and asks sing-song, ''Won't you dance around with me?''
''Big Fat Goalie"
Monica's high school nickname.
To punish Chandler for kissing his girlfriend Kathy (Paget Brewster), Joey forces his roommate to stay in a large crate for as long as it takes.
Ross and Rachel were on one when he cheated on her?or were they?
Buffay the Vampire Layer (shown)
A pornographic film starring Phoebe's twin Ursula, which causes a lot of grief for the good Buffay sister.
Joey was Al Pacino's.
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Central Perk (shown)
Soho's answer to Cheers, minus the booze; service is terrible.
The cause of one of very few fights between Chandler and Rachel — after receiving an accidental delivery meant for a neighbor, they became addicted to the creamy dessert and ultimately end up eating some of a cheesecake directly off the hallway floor.
Ross bought this lavish gift for Carol in an over-the-top display of affection, and Chandler accidentally reveals Ross's longtime crush on Rachel when mentioning the duck in conversation.
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Dr. Drake Ramoray
Joey's Days of Our Lives character, who died after falling down an elevator — or so it seemed, until Joey returned to the show, apparently having been in a coma for years.
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Chandler's more-than-likely psychotic roommate (played by Adam Goldberg), who moves in when Joey gets his own apartment; he has a fetish for dehydrating things and absolutely zero ability to tell the difference between a real, live goldfish and a Goldfish cracker.
Estelle Leonard (shown)
Joey's fairly useless agent (June Gable), who has a severe smoking habit and passes away in season 10.
Phoebe doesn't believe in it, much to Ross's frustration.
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Joey and Chandler make up this dangerous game involving a flaming sphere; later becoming Ultimate Fireball, it's their second-favorite game after...
The beloved table game invented in 1921; at one point, the guys use a dehydrated cantaloupe (thanks, Eddie!) in lieu of a proper foosball.
One of many pop-culture terms coined by the series, specifically when one person in a friendship is relegated to platonic status by the other friend, for whom (s)he has romantic feelings
Frankie Says Relax (shown)
When Ross and Rachel break up in season 3, Ross insists on taking back this T-shirt, inspired by Frankie Goes to Hollywood's 1983 hit, even though it's clearly too small.
Freud! The Musical
Off-Broadway musical in which Joey plays the singing, dancing father of psychiatry himself. Still better than Smash's interpretation.
Monica's on-and-off boyfriend from seasons 1 and 2; it turned out he could have more accurately been described as Drunk Bobby because he became incredibly boring once he gave up alcohol.
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Gladys and Glynnis
Two super-creepy 3-D paintings of bald mannequins that Phoebe passes on to Rachel and Monica; the roommates fight over who can have Gladys after they see how much uglier Glynnis is. Also, they apparently have a Facebook page.
Ross once bizarrely claimed he invented the popular '90s slogan.
The barista at Central Perk, who harbors an undying, unrequited love for Rachel.
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Monica and Rachel's off-kilter downstairs neighbor (Larry Hankin), who's constantly making far-fetched claims about his hobbies while complaining about the noise the ladies are making; Heckles dies in season 2, and it's revealed that there really was a lot of noise coming from the upstairs apartment — and that Chandler is more like Heckles than he realized.
Holiday Armadillo (shown)
Ross dresses up as this made-up seasonal mascot so Ben will have an alternative counterpart to Santa Claus.
Hootie & the Blowfish
Ross, Chandler, and Monica go to the ''Hold My Hand'' band's concert on his birthday in season 2, but the cost triggers a fight over money with the other friends, whose jobs don't pay as much.
''How YOU doin'?''
Joey's signature pick-up line.
Joey has a hard time letting go of his bedtime penguin pal when Emma takes a liking to Huggsy.
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''I Hate Rachel'' Club (shown)
When Ross's old friend Will (Jennifer Aniston's then-husband Brad Pitt) joins the friends for Thanksgiving, Rachel is upset to find out that Will and Ross formed this club in high school and started a rumor that Rachel had ''a hint of a penis.''
Phoebe's secret husband (Steve Zahn) is a member of this now defunct skating exhibition.
''I'll Be There for You''
The show's theme song by The Rembrandts, which made the duo's day, week, month, year, and lives.
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Janice Hosenstein Litman Goralnik
Chandler's longtime on-and-off girlfriend (Maggie Wheeler), his perpetual annoyance and yet, before Monica, kind of the love of his life; see ''O.''
Joey's roommate (Elle MacPherson) after Chandler and Monica move in together; they have a brief, ill-advised romance until she reveals she doesn't like Chandler and Monica.
Fictional Days of Our Lives icon played by Cecilia Munroe (Susan Sarandon), who tosses drinks and has her brain donated to Drake Ramoray.
Though perhaps it's best to forget Matt LeBlanc's short-lived Friends spinoff.
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Joey's alter ego (see ''R'' for Phoebe's).
As we saw a few times during the series, Ross knows his way around one.
Kool & the Gang
Another musical moment from Ross — he wants to play a bagpipe rendition of the disco funk outfit's 1980 chart-topper ''Celebration'' at Monica and Chandler's wedding.
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Rachel's childhood dog, who was struck by an ice cream truck and dragged 19 blocks to its death.
Joey learns to love Louisa May Alcott's 1868 novel about sisterhood when he and Rachel take part in a book swap.
They mate for life, and Rachel is Ross's.
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Mac and C.H.E.E.S.E
Joey plays wisecracking police detecitve Mac Machiavelli, who's partnered up with a robot named C.H.E.E.S.E. (Computerized Humanoid Electronically Enhanced Secret Enforcer) in this sitcom.
Ross's Capuchin monkey who takes to humping everything and has to be sent to the a zoo, only to be stolen and become a movie star alongside Jean-Claude Van Damme.
Joey plays a man with venereal disease named Mario, who becomes a real game-killer for a lifelong Lothario like Joey.
A space cowboy and Joey's imaginary childhood best friend.
When Joey eats too much meat, he sweats; suggested wardrobe: Thanksgiving pants.
Phoebe's physicist boyfriend David (Hank Azaria) breaks her heart when he accepts a three-year grant to research in the capital of Belarus.
Ross thinks he's killed the pet hamster of Cheryl (Rebecca Romijn), the ''Dirty Girl'' he's dating, but it's only a rat that was trapped in a potato chip bag in her filthy apartment.
In between jobs, Monica takes a freelance gig developing recipes for this FDA-approval-pending chocolate substitute; crumbly and disgusting, Mockolate never gets its approval possibly because it causes a burning sensation when consumers urinate.
A layer of gravy-soaked bread put in the middle of a leftover Thanksgiving turkey sandwich, it's Monica's secret weapon and causes a huge rift between Ross and his boss at the museum.
The girlfriend (Bonnie Somerville) Ross neglects because of his relationship with Rachel and Emma.
A fake name Monica uses when bonding with the tap-dancing woman (Claudia Shear) who stole her identity.
Barcelona locale of a story Joey tells Ross to use while seducing women.
Rachel's hairless Sphynx cat.
Phoebe is much better at this classic arcade game than anyone else.
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Nap Partners (shown)
Joey and Ross doze together multiple times in season 7 until the rest of the gang discovers their clandestine pastime.
Monica tries for days to crack Phoebe's ''secret family recipe'' for cookies, only to discover it came off the back of a bag.
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The ''professional'' name of overweight, arrythmic stripper Roy (Danny DeVito), whom Rachel hires at the last minute for Phoebe's bridal shower.
''OH! MY! GOD!'' (shown)
Janice's most-used phrase.
''The One Where''
Every Friends episode begins with the words ''The One Where/With?''.
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The name of the dog statue that was Chandler and Joey's unofficial mascot, purchased in the midst of a spending spree after Joey's Days of Our Lives money started rolling in.
Ross repeatedly screams this word at Chandler and Rachel as they try to move a couch up a narrow flight of stairs leading to Ross's new apartment.
While working at the American Museum of Natural History in early seasons, Ross brings Rachel here when he's called to work during their second date, and they make love for the first time under the ''stars'' as Chris Isaak's ''Wicked Game'' plays.
Princess Leia (shown)
Rachel dresses up as the Star Wars character to fulfill a fantasy for Ross.
Joey was a terrible partner on this game show.
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"Quiet down" hands
When Ross moves in with Chandler and Joey in season 5, he drives them crazy by frequently and non-verbally telling them to ''quiet down'' with this condescending hand gesture.
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Jennifer Aniston's haircut became a huge national trend in the show's early years, though she's since admitted she hated the style.
Rachel works for the classic American designer for several seasons; Rachel's boss (Joanna Gleason) accuses Rachel of having sexual tension with Ralph, though it's actually Phoebe who thinks she's made out with him — turns out, Phoebe actually hooked up with Kenny the Copy Boy.
Phoebe's pseudonym, referenced several times through the series.
Monica's opthamologist boyfriend (Tom Selleck), who's also her father's best friend; they nearly become engaged, but Monica wants children, and Richard doesn't; his appearance in the season 6 finale motivates Chandler to propose to Monica.
An obnoxious actor (Gary Oldman) with whom Joey works and who insists that enunciating to the point of spitting on your scene partner is the key to acting.
Joey's favorite armchair, which Rachel snaps in half in season 7, causing Joey to trick Chandler into buying him a new chair.
''The Routine'' (shown)
A choreographed dance Ross and Monica made up when they were younger that they perform on Dick Clark's New Year's Rockin' Eve.
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Phoebe rings a bell for this charity in season 5; she soon becomes drunk with power and scary to passersby.
A comic book hero Ross created as a kid, with a ''superhuman thirst for knowledge'' and a massive crush on Gravity Girl; Phoebe coincidentally stole Science Boy when she mugged Ross as a teenager, but she ultimately returns it to him.
A.K.A. Tommy, a guy Monica dates (Ben Stiller) who has anger issues.
Rachel reads the Stephen King thriller during her book swap with Joey.
Joey travels to Las Vegas to shoot this indie film; only to find it's been shut down before he arrives, so he takes up work as a gladiator at Caesar's Palace; the gang comes to visit, and Ross and Rachel get so drunk they elope.
''Smell the Fart'' Acting
One of Joey's patented techniques.
Smelly Cat (shown)
The feline subject of Phoebe's signature song. We still don't know what they were feeding him, but it wasn't his fault.
Phoebe's persona when she was homeless as a teen. She occasionally summons Street Phoebe to do things like keep Ross's coworkers from eating his lunch.
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Remember that time Ross's were way too white?
Emily says these two little words to Ross after he tells her he loves her.
Friends dedicated an episode to the holiday every season.
Rachel kisses Ross and steals Monica's thunder in the wake of Chandler's proposal.
Definitely not Chandler's job (though it's still unclear what Chandler's job actually was); still not even a word.
Rachel attempts to prove she can cook by preparing this traditional English dessert — only, she doesn't realize the pages of the magazine are stuck together and adds ground beef and peas between the layers of strawberry jam and custard, prompting Ross to announced that ''it tastes like feet!''
Chandler takes a job in this Oklahoma city in season 9
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Ugly Naked Guy (shown)
The friends spend a lot of time watching their neighbor across the street, who prefers to do everything au naturel; eventually, Ross convinces him to rent him his apartment by showing up on his doorstep and applauding his decision to live life in the buff, then spending a nude afternoon with him.
A state of total awareness that Ross has developed after studying years of karate.
This Macy's Thanksgiving Day Parade float escapes in Friends' first-ever Turkey Day episode.
Phoebe's (basically) evil twin.
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The Velveteen Rabbit
Chandler buys a first edition of Kathy's childhood favorite for her birthday, but ultimately allows Joey to give it to her so she doesn't realize Chandler has feelings for her.
As in ''I'm trapped in an ATM vestibule with Jill Goodacre!''
The name of Joey's character in Boxing Day, the play that ended with an alien abduction.
Viva Las Gaygas
The all-male burlesque revue in Las Vegas starring Chandler's father (Kathleen Turner).
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Way/No Way (shown)
Ross and Chandler's college band.
Weekend at Bernie's
Rachel's actual favorite movie (as opposed to Dangerous Liaisons).
Chandler's office slang term for ''Weekly Estimated Net Usage System'' — not to be confused with ANUS (Annual Net Usage Statistics).
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Ross tells Rachel she can't look fat in one.
Chloe (Angela Featherstone), the girl with whom Ross drunkenly cheated on Rachel during their ''break,'' worked at a photocopy shop.
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Chandler pretends to move to the Middle Eastern country to shake off Janice.
A.K.A. Danny (George Newbern), a handsome — at least after he shaves — neighbor whom Rachel briefly dates until she finds his touchy-feely closeness with his sister disturbing.
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Phoebe's boyfriend Parker (Alec Baldwin), who is annoyingly excited about everything.
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Chandler/Joey and Monica/Rachel's apartments, respectively (though they were Nos. 19 and 20 in later seasons).
Number of towel categories Monica has
The spray tan number Ross accidentally got on his front (a.k.a. 4 sets of 2s), but a series of misadventures resulted in the number of sprays on his back was a 0.
The age at which Chandler first touched a girl's breast.