Derived from the hotbox, this is when u wait till your entire family is in the car and its raining outside. Once on the highway you fart you fucking brains out but cant open the windows due to the rain outside. All in the car die from odor as you laugh like satan spawn
Dude: just came from the funeral home
Best friend: how'd they die?
Dude: i fartboxed (past tense of fartboxing) the shit out of them last week
by Nickyd123 February 9, 2015
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When you fart in a car with closed windows and the smell is so vile that the windows fog up and an undefined ectoplasmic substance accumulates on all surfaces.
Fat Abbott was Fartboxing his vehicle with such incredibly rancid bombs that he projectile vomited all over his ugly ass soccer mom SUV. His passengers weren't so lucky and all perished.
by Liberal Joe May 14, 2019
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When one farts sufficiently in a confined space so that it becomes rather potent.
The red fiesta had been farted in so much it had become fartboxed.
by bumboys January 24, 2016
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Roxi's fartbox is well used and very loose.
by Dennis Halsey February 7, 2003
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What's up girl, would you mind if I stuck it in your fartbox tonight?
by MoodyJM August 1, 2007
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Nice fartbox our kid.. U wanna tighten it up a bit though, too much treble, not enough bass
by grolsch guzzler September 3, 2003
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