-When Willie and Marcus are teaching the kid how to fight and they all get punched in the nuts.
-The checkers scene. " fuckin Seabiscuit all over the place!"
-The scene where BMac and Ritter are talking about Willie banging chicks in the plus-size dressing room.
-Wooden Pickle lol

Bob: You two are perfect for this job, truly. So, I don't want his unpleasentness affect your performance in any way.
Marcus: Oh no. We...
Willie: Performance?
Bob: Yes. Your performance. You know, the...
Willie: Do you mean sexual?
[Bob looks up at Willie in confusion]
Bob Chipeska: Excuse me?
Willie: Are you saying there's something wrong with my GEAR? Is that what you're saying to me?
Bob Chipeska: I'm sorry, your gear?
Marcus: Willie...
Willie: MY FUCK STICK
[Bob makes a disgusted look] (mouths to himself ".. fuck stick?")

That movie is fucking awesome.

Also, the scene where he grabs all the car keys from the valet booth and takes the beamer cracked me up.

This movie I feel went under appreciated. Most people I know have never seen it.