1 definition by Bobness234234

Top Definition
Mister Derp is a fail troll/baiter.
Mister Derp : LOL I EDITED YOUR POST UMAD

Other Poster: No, not really.
by Bobness234234 October 08, 2011

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug