More specifically: Butt Crushing
Having a character's butt be in front of camera after he/she sits on another character.
In most cartoons, there are times when big and heavy characters could accidently or purposely sit on someone to be Squashed Flat, and they would even be stuck on their butts. The camera could have a P.O.V. Cam of the person about to be sat on and their butt obscures the camera. [...] [tvtropes.org]