Top Definition
someone who is not the smartest person on the planet.
Kyle: "Come to the party on Saturday!"

Taylor: "Nah. I think i'm just going to stay home and relax."
Kyle: "Oh my gosh, you're such a chumpdumper."
by Taylor Gafahrem January 06, 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.