Definitions by JoBry

derpster 

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!"

derpster by JoBry December 9, 2008