As used to describe a person who acts like, well....like a Dumb Egotistical Retrograde Prick. Give 'em a hammer. They'll do the rest.
by mtnmedic January 8, 2014

by Niamhwaite December 3, 2020

by Derpking_boi April 18, 2019

"I was mid-cough when the character scared me; really had me derping."
"Don't watch scary movies while sick or you might end up derping."
"Don't watch scary movies while sick or you might end up derping."
by SynSay December 3, 2020

Derp is one who does something foolish or derpy. These people tend to have mad cheekbones and a lack of hair and excessive body fat.
by Derp Derpson April 28, 2020

1. Kevin was derping while playing a game
by Little Kevi god rest his soul December 4, 2020

by Kn1fewound January 26, 2021
