Man in wheelchair pull up comedy

Trying to name a film where a scene involves a man is in a wheelchair in a bar/pub and gets out and does pull ups and the crowd are cheering. The main characters don’t care for him but the barmaids and other people love him. He isn’t a main character but pops up a couple times. I’m sure he has glasses and he walks around on his knuckles and legs (on all 4s)