Underflip

What is Underflip?

Performing a twirling maneouver during sexual activity.

Those two homeless men performed an underflip last night on the steps of the public library.

See Dirty Sanchez

Running Back

1. A position in Grid Iron (or American Football) who lines up directly behind the Quarterback. The Quarterback can hand the ball off to th..

Gobsoffing

1. Acronym of Girl on Boy Strap-on Fucking. Denotes the act of taking it in the ass from a chick with a strap on dildo. While Gobsoffing,..

Cratomenlumium

1. Really stink smelling poop. "oh man. i just pooped." "ugh that's cratomenlumium!" See poop, stink, gross, to..

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Underflip Edit Meaning