Meth Mouth 

The stripping of enamel from the teeth, caused by prolonged meth smoking. The teeth, lacking enamel, then rot at a much faster rate, often turning black and infecting the gums.

I saw all kinds of meth mouth at the Iowa State Fair.

Meth Mouth by Horus April 18, 2006

Look a gift horse in the mouth 

to be critical of a present or gift

Despite thought put into the gift, he decided to look a gift horse in the mouth and commented on the cheapness of the gift

Look a gift horse in the mouth by stanzz October 25, 2006

party in my mouth 

A metaphorical shindig in one's pie hole to which a large amount of people are invited. Often, but not always, connotates good taste, depending on the clause that comes after this phrase.

Positive: "It's like there's a party in my mouth, and everyone's invited!"

Negative: "It's like there's a party in my mouth, and everyone's throwing up."

party in my mouth by Zeke April 9, 2005

garbage mouth 

Verb. In the hospitality industry, when a waiter, waitress, busser, dish washer, etc. eats food from a plate left by a customer. Also known as trash mouthing.

I saw the waiter garbage mouth a roll off the tray as he entered the kitchen.

garbage mouth by enigma92000 December 14, 2008

beer mouth 

The taste in your mouth after a night of beer drinking

"I had so much beer last night i have a serious case of beer mouth"

beer mouth by renobenoc April 26, 2008

mung mouth 

The point at which your teeth are literally furry from lack of brushing.

Go brush your teeth, you mung mouth!

mung mouth by TimmyPants November 2, 2008

Patch mouth 

The art of fooling people into thinking your doing it BIG for personal enjoyment or fulfillment

Foo ima Patch Mouth everyone on Facebook and Say i'm chilling in San Francisco when i'm really at my Mom's Crib

Patch mouth by dave uno October 15, 2010