pit fuck

The insertion of the penis in the arm pit.
"That girl is so hott, i would Pit Fuck her if thats all i could get"
by the gentle giant September 25, 2005
mugGet the pit fuckmug.

knee-pit fuck

Damn girl, your kankles are turning me on. I'm gonna knee-pit fuck you, you skanky whore.
by bike shop August 19, 2007
mugGet the knee-pit fuckmug.