Top Definition
A retard who's born with a few extra chromosomes and, as a result of this, feels obligated to vote down on every UD definition he comes across just because he feels like it.
Person A - Hey, why's that spaz voting down on that UD definition for crack? It's a perfect definition man!

Person B - Oh him? Yeah, he's just an Urban Dictionary Downer.
by Urban Dictionary Upper February 18, 2010

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.