1.)Used as a general term to describe some one with bad smeling breath. 2.) Used specifically to describe of someone who commonly performs fallacio on a person following anal sex; or one who places objects in one's mouth following the insertion of said object into the anus.
I don't think that assmouth knows where that chess piece just was.
by J_AK December 08, 2006

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Top Definition
Gross condition of Bad Breath and 'Shit-Teeth' caused from Rimming or Eating a Guys Ass, and NOT Brushing afterwards.
"Everybody at the Party was SO Grossed Out by My 'Ass Mouth' nobody`d talk to me!
by Gregor Peebles January 03, 2006

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The type of mouth you get after a night of heavy drinking and taking drugs in excess of number. It consists of a sticky velcro tongue (so sticky it could stick to a dogs bollock and you get a dog fart in your face), a dry cloggy throat that's 1mm wide, furry teeth and lips that have flaking peeling dry skin coming off. It also creates a mouth that is non-quenchable by any liquid, it even makes ice water taste like you're licking the inside of a dustbin.
Courtney: My ass mouth is making me wana slit my wrists and dance in my own blood, I wish I had some turboce.
Amber: I'm not suprised, you're breath smells like a decapitated corpse, have a polo.
by ***Amboce*** June 03, 2007

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Someone who will never stfu,or every time they talk shit comes out of there mouth.
Dominic is a assmouth,he always talks gay,sabrina sprays shit out of her mouth when she talks
by assmaster65 September 23, 2005

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The wrinkles that unhappy old ladies have around their mouths. Often caused by smoking. And also being uptight.
If it wasn't for Botox, Ann Coulter would totally have ass mouth.
by anncoulter June 07, 2011

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1. Extreme halitosis (bad breath).

2. A person who suffers from extreme halitosis, to the point where the only logical explanation for such bad breath from a human being is that he/she uses dog shit for toothpaste.
Well, what do you expect, ass-mouth doesn't have time to brush his teeth because he's on the internet all the damn time.
by Kevin Howlett February 16, 2004

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A term used to insult the band Smashmouth.
Please change the channel, I hate listening to Assmouth.
by Big Meat011 May 28, 2011

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