1. the upward thrust of pants after a very powerful fart or release of ass gases.

Background: My friend and I were sitting around when he had to pass some gas while wearing very loose fitting pants. The deep bass was only surpasses by the upward 'fluff' of the pants which settled back downward after the thrust of ass gas.
That guy had some powerful parachutin erruption, I'd say it almost broke through his pants.
by subarudrew May 12, 2004
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The art of sexual intercourse while sky diving and tooting on her tits. All the while shooting your cum in her face.
I wanna rootin tootin shootin parachutin Kim so bad
by Fergus Forsyth! March 13, 2014
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