Top Definition
Trying your hardest to be or appear dumb, whether intentionally or unintentionally.
Liam: I hear someone said they has an IQ of 175 from an internet IQ test.
Josh: He's so dumbitious.
by random1234567890 March 12, 2009

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×