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1. Noun: An extremely loud and powerful fart that commands admiration and deference.

2. Adj: Shockingly loud, commanding - used especially as a description of farts.
The conductor raised his hands as the audience quieted in anticipation and to their profound amazement he unleashed a fartissimo!

Greg made a strong effort and managed a good loud fart, but Jacob's was fartissimo!
by onehandcrabbing November 14, 2011
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2
a butt-trumpet blast for the ages.

it might not be silent, but it's perfectly capable of still being deadly.
The winner of the vegetarian chili-chomping contest soon found her downfall as her bum began to play in fartissimo, to the delight and dismay of her companions.
by Haystack October 28, 2015
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