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(n) a very lethal expulsion of gas through the anus, characterized by being extremely warm and quiet, and is often used to strip paint

(v) {-ed,-ing} to let a McFart
McDonald's makes me McFart.
by BeardedFatass January 20, 2004
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Mc Fart is a fart that occurs after comsuming a McDonalds burger
I dont think that burger agrees with stomach, i just did a Mc Fart
You must of just had Mcdonalds, I can smell your McFart
via giphy
by Pisoglendis July 31, 2018
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