Midfuck

having sex with someone in their middle, A.K.A belly button. You need to have a deep belly button to midfuck.

1- Hey man i totally midfucked that chick last night!
2- i believe it. i lost my keys in her belly button last saturday.

by Uberzanoobzer April 13, 2011

midfuck

in the middle of a fuck

Dude i was fucking this chick and I answered my cellphone midfuck.

by Adam (Erb) Ebady December 20, 2008