Pulling A Derps

1.Pulling A Derps is the act of betraying everyone who was ever nice to you

2.being a zygote

J: Dude did you see what that zygote said?
Caynix: Lmao hes Pulling A Derps

pull a derp

The act whereby one tries to do something, but will fail without a doubt.

Daniel: Watch me get this clutch on CS:GO!
*Get's AWP'ed*
Jason: I knew you'd pull a derp.