basic instinct 

When a woman wearing a skirt & no underwear briefly opens her legs so that her crotch is visible.

I was sitting on the train and this woman across the aisle basic instincted me!

basic instinct by McArrr May 8, 2008

basic instinct 

as bill hicks would say "piece of shit"

basic instinct is a piece of shit

basic instinct by billhickslives November 20, 2009