When two good friends (usually girls) are lying on a couch next to each other eating snacks together, laughing, and watching TV, and then out of nowhere, they start wiggling their bodies, going crazy, and screaming like linda blair from the exorcist!
Ali: Hahahaha this is my fave episode of family guy.
Hayley: I know, but before it starts, its time for.....
Ali: The out of control nip!
Both girls: AHHHA AHHH AHAHHAAH AHOOOOOO AFHADLIEJAO