The sexual position where the underside of a car is removed, so as to have the road right under you, and to proceed to fuck with one person hanging out. When the underside is cut out, critical elements may end up removed, so park on top of a hill, so the car can roll down once ready.
T: Dude, last night me and Cindy totally Indiana truck-fucked, just like in the movie!
N:What movie? Oh, that one with your mom in it called the indiana truck-fuck.

T: Dude, use caps. we went to school for a reason, you know.
by Titty NipNip November 9, 2011
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