One who is responsible for committing a stupid act.
One of my roommates left the oven on. Again. Okay, guys... who's the derpetrator here?
by spiffy_kimbean April 19, 2011
Top Definition
Adjective- The person who is responsible of someone's retarded act and or retarded way of saying something.
"Oh man, I totally just slipped on a banana peel Tom threw in front of me."

"LOL Tom is totally the derpetrator of this situation here."

"I hate Tom with a burning passion."
by TheDerpetrator November 17, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.