Farts that occur when people fart in the tub. These come in the form of fart bubbles, or bubbles that contain methane, carbon dioxide, and other gases.
People, especially young ones, experienced tub farts when they bathed instead of showering.
by Fartloverspizza September 19, 2014
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A tub fart is a total joke of a person too stupid to ever take seriously that deserves to be mocked and put in their place.

A real stink of a person, a total fucking idiot, a moron, a twonk
"Did you hear what Tomi Lahren said today?"
"No way I don't waste my time with that tub fart"
by Cascadian_Underground April 3, 2019
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(Also known as a Flart) when you fart in the bathtub & a little bit of water gets in your ass. You then get out of the tub & fart in such a way it sounds like a mother-in-law spitty kiss.

"Phumpt, tub fart, mother-in-law's kiss
You know like a fart after a tub fart? It's a little moist kiss.
by JohnnySynn January 14, 2023
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