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Microscopic, particulate matter expelled from one's anus during flatuent activity, usually confined to one's underwear if such garments are in fact being worn, though its infinitesemal size can still disperse into the surrounding air regardless of the presence of protective garments thus landing on your peanut butter and jelly sandwich.
Johnny ripped a huge fart when his girlfriend, Carmen, was talking on the phone and she did not realize that his fecal blowback landed in her Cesar salad.
by Professor Rizzle March 18, 2010
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