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One who sniffs and breathes in others farts in an attempt to get hi.
"You're so fat you can't get out the door!"

"At least I'm not a fartmuncher!"
by Sarah to Fiona July 20, 2005
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The name you call someone when They open their mouth after you say that you farted.
That man is a real Fart Muncher!
via giphy
by Coolest dude June 05, 2018
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