derfing 

Aggressively grinding each other while making out.

Abby was derfing so hard last night with him.

derfing by yunglivin September 1, 2019

Derfing 

Sex with clothes on

Cooper: hey Claudia wanna go derfing later?

Derfing by Derfingyurrrmom October 30, 2019

derfing 

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

derfing 

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.

Dolphin Derfing by Mondo Johnson April 16, 2019

derking 

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.

Miley Cyrus and Robin Thicke were totally derking

derking by Stenika September 9, 2013

Derping 

Scared and coughing

Call Me Kevin is derping.

Derping by Ilovebearnoises December 3, 2020