bastardized verison of the insult "fuck butt"
i cant believe you've done that, you.. you.. futt butt!
by stereohigh21 July 12, 2009
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To pull down your pants and bare ass fart directly into somebody's face.
Yo Francois, David just butt-futted me so fucking hard I saw his butt cheeks vibrate.
by jasparagus January 10, 2021
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