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
Get the mug
Get a Jabba-mouth mug for your dog Rihanna.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the merch
Get the jabbed neck gaiter and mug.