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.
by Jackson Blueboy April 6, 2015
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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
by TheNoNamedNigga September 24, 2019
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