The funniest thing about that whole sketch was, when you watch it, they are going back and forth in that "dance off", but when Chris Farley finishes and Patrick Swayze starts to begin his turn, Chris Farley just keeps on going, and starts doing some completely off the wall things, jumping to his feet, putting his fingers in "v" in front of his eyes (Not Pulp Fiction style, something completely stationary) and it was so funny and weird that Patrick Swayze just stood there apparently dumbfounded, watching him as he stole the show...
One of my favorite silly comedy movies is "Tommy Boy"...the scene where he spills his M&M's in David Spade's car is priceless!