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A person who eats shit.
Hey "shit mouth" how is your mom?
by Andrew November 24, 2003
35 19
A person who says foul things all the time. ie. as if shit were coming out of the person's mouth
Tell that "shit mouth" to stop saying bad things about me.
by Brian March 12, 2005
23 17
a person who has diaherrea of the mouth. someone who talks so much, you want to punch them.
stop shitmouth!!

by djs October 03, 2003
11 6
When you have shit in your mouth, from anyone/thing.
"hey, this shit tastes good!"
by Matthew Penfold September 22, 2003
11 8
A Shitmouth is a liar, a BAD liar.
Someone who will maintain their lie was true, even when they're trumped by evidence.
"I know you cheated on me, the tramp told me herself! You're nothing but a Shitmouth!!"

"Dude you can't believe anything he says, he's always been a Shitmouth"
by Grumple June 30, 2009
4 3
A name for a really cool awesome person or thing
GUY 1:Yo that guy is a shitmouth

GUY2:Ya i know right
by biggy smooth October 20, 2010
4 6
Shit mouth is a term used to describe a person's vocabulary. This person is usually an over talker. Talks relentlessly about shit that doesn't matter. Mouth garbage, word spewage.
Rick always talks about nothing important to every one, he has cronic shit mouth.
by sMartipants March 02, 2012
1 6