Th act of spreading mayonaise or some type of slippery supstance onto a girls thighs and adding a collection of hair. You proceed to fuck the shit out of her thighs. Used mostly by Mormons in replacement of actual sex.
Dude, last night Mary and I were thigh fucking when her dad entered the room only to get a giant chub.
by Cole Robinson August 11, 2006
by Cole Robinson August 11, 2006