A word uttered when performing a particularly easy frag in a multiplayer combat game such as halo or unreal tournament.
(Player 1 spots player 2 trying to hide under a set of stairs, facing east. Player 1 approaches from the west and pops player 2's melon with a particularly high-powered weapon.)
Player 2: Aaaahgh...
Player 1: DERP!
Player 2: Aaaahgh...
Player 1: DERP!
by cyomega April 14, 2004

by Jimy March 30, 2005

Dude I was derping so hard yesterday, I almost put Ramen Noodles in the oven with my dick!
Tryna derp?
Tryna derp?
by Kaufdaman August 8, 2010

Something your annoying friend says after you've typed something really long and important that she doesn't bother to read.
by Mysterious Mustached Wizard July 13, 2012

farmer: HEY!! WHAT DO U THINK YOU'RE DOING WITH MY PIGS!!
child: I'm raping them
farmer: STOP! THIS FARM BELIEVES IN DERP
child: I'm raping them
farmer: STOP! THIS FARM BELIEVES IN DERP
by daxtonizawesome September 11, 2011

The state of being cross-eyed and generally looking stupid, possibly with some showing of teeth for effect. Being derp can be voluntary or involuntary
by Daraghderp November 16, 2010

by NOT a derp August 7, 2010
