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Sex with clothes on
Cooper: hey Claudia wanna go derfing later?
Derfing by Derfingyurrrmom October 30, 2019
Related Words
the act of fucking a girl who is way below any normal standards
person 1:so i heard you went derfing last night.
person 2:yeah, I took pcp.

I wanted to go derfing, to I found the girl nicknamed Trailer Trash.

Bonus points if they have a kid.
derfing by fred v. September 15, 2006
When a guy and girl are sexually intimate, the practice of the guy to alternate between bottom and top holes (anus and vagina). No particular pattern of action is required, and the switch-off can be completely random (ie: top, top, bottom, top, bottom, top, bottom, bottom, bottom, top, fist).

Create special patterns to signify festive or celebratory events and occassions; re-live these occassions through fantastic, nostalgic sexual practices!
Donnie: Tim was derfing Julie and covered her vagina with shit.
Darcy: Goddam! O_O
derfing by Pwnforce United December 27, 2005

Dolphin Derfing

The act of dry humping with oscillations occurring rhythmically taking the form of the wigglings of a dolphin out of water.
Dude are you taking that Provo hair school chick out again? Yeah dude, if I play my cards right we’ll be dolphin derfing hard tonight.
A dance that is a combination between twerking and daggering that is primarily meant to lower the IQ of both the dancers and to let other people feel better about themselves.
derking by Stenika September 9, 2013
Call Me Kevin is derping.
Derping by Ilovebearnoises December 3, 2020