Basic Trope: A simple gag is stretched out to the point of losing humor, then continues going on, circling back to being funny again.
Straight: Bob smashes a glass bottle against a counter to use as a makeshift weapon, before noticing the handle's too short. So he gets another glass bottle, drinks its contents, and smashes that one before seeing the blades aren't sharp enough. Repeat ad nauseam until commercial break.
Exaggerated: An entire season is dedicated to nothing but Bob smashing bottles!