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Grizzly Autistic Joe - derp. The derp is just a random word used by f***ing morons who think they're cool by saying it and slapping their chest like a f***ing caveman.
I just said derp and hit my chest like I was trying to break my ribs.
He said derp so loud my dog ran away.
She derp'd me in the face and I didn't even see it coming.