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Air mud is the presence of a mixture of gases in the digestive tract expelled from the rectum. Also known as a fart.
Nelly, if you are going to blow air mud, can you please go into the other room? Maybe you can go into the air mud room a.k.a. the office in the basement, and close the door!

Your peers will consider you a big time joke dog when you throw air mud in public!
by Nicole for Bryan Nelson January 03, 2008
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