By Christian Holub
August 22, 2016 at 04:35 PM EDT

Regional slang: it’ll get you every time. On a stop at Australian morning show Today as part of their press tour for Bridget Jones’s Baby, Patrick Dempsey and Renee Zellweger decided to demonstrate their knowledge of Australian dialect. Zellweger tried the accent, and Dempsey wanted to demonstrate slang, but it did not end well for the former Grey’s Anatomy star. 

“Traveller,” Dempsey said. “That’s a beer you travel with, right?”

This was greeted by much laughter from the Today hosts, as Dempsey had accidentally mixed up his Australian slang. One of the co-hosts quickly informed him (off-mic) that “traveller” actually refers to an erection a man gets while on public transportation.

“All the blokes who are watching are sitting upright right now,” co-host Lisa Wilkinson said.

“Oh, excuse me,” Dempsey laughed after being informed of his mistake.

Watch the clip here.