The two stars have been on the road promoting their movie, which hits theaters on Dec. 21 during the height of the holiday movie season.
In one of their latest appearances, they stopped by Scott Mills’ radio show on BBC Radio 1, co-hosted by Chris Stark.
“Don’t hold back, what’s said in this room is just a game. Don’t take the insults personally,” said Stark. Yeah right.
Lawrence and Pratt delighted in ripping each other up. They’ve been pranking each other during the promo tour almost non-stop.
“All you got to do is try to make each other laugh, so the sillier the insult the better for us. The game ends when someone loses it or delivers the absolute killer insult,” added Mills.
In her first put-down, Lawrence went straight for Pratt’s manhood, questioning his physical strength.
Pratt counter with a jab at Lawrence’s mop movie. “Why do they call it joy?” he asked in total deadpan.
Lawrence almost lost it.
“I really love you in ‘Everwood’ said no one ever,” Lawrence counter-punched, referring to one of Pratt’s lesser known movies.
The insults get lower and lower from there, until Pratt throws a below-the-belt jab the flips Jen out.
Find out what he said. Just check out the video below. Let us know your thoughts and be sure to follow IM on Twitter for the latest movie news.