the act of using a clip of any sort to shut close a bag of snack food. and then immediately proceeding to erupt in imitation monkey noises.
"MAN dawg, last night i got so cRUNK. i Crimped it AND chimped it."

"oohoo OHOOHOOHOHH OOO OOO O O O O OOOOoooOOOooOOO."

"yeeeaaah dude, crimp it and chimp it."
by flaccid grass September 26, 2021
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