1 definition by JoBry

Top Definition
One who derps. DERP!!!!
1. Tom: "Dude, Gary is totally hitting on his girlfriends mom right in front of her!"

John: "What a friggin' derpster!"

2. "Bernie just screwed me on my car loan. I'll get that derpster if it's the last thing I do!"
by JoBry August 23, 2007

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