Top Definition
The act of one person laying on the ground, ass spread wide open. Then a person takes a shit in between the others spread cheaks. Once turd is in place you then push both butt cheeks together watching the shit ooze out. Much like the filling in a pannini when pushed together.
1.)"Hey dallas I heard you had the assini last night."
"No way man, that was jefferey."

2.)I would like to eat her assini.

3.)That assini hit the spot.
by ANdyc69 January 29, 2011

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