The combined smell of nasty sweaty ass & feet. One of the worst smells known to man.
Oh my god! What is that smell? Someone has a major case of butt-foot going on! Wash your ass!!
by BamBamBitches! August 18, 2011
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When her butt size is a whole foot (12+ inches) larger than her waist.

Also spelled "footbutt" as one word
Damn she got a foot butt.

How you find pants to fit that footbutt?
by DaMarcus DaJones DaThurd September 17, 2017
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