Top Definition
A person who runs their mouth like they know what they're talking about and they're in the right when in reality they are dead wrong and misinformed.

Characteristics of a jabba-mouth

1. Extremely stubborn
2. Won't admit being wrong even when they are
3. They get angry when people disagree with them
4. No tolerance or respect for other opinions/beliefs that clash w/ their own
John: The sky is blue

Jabba-mouth: No it's not it's brown

John: It's a known fact and anyone can clearly see.........

Jabba-mouth: F**K YOU DOUCHEBAG IT'S BROWN!!!!
by Capri211 July 27, 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.