Top Definition
Something that "hums" (stinks) which also comes from your bum. i.e farting..guffing, trumping...bottom vapours!!!
"Hey what's that awful smell"

It's Andy...he's got bum hum!
#farts #trumps #guffs #wind #puffs
by BFREASH February 16, 2010
9 Words related to Bum Hum
Something that "hums" (stinks) which also comes from your bum. i.e farting..guffing, trumping...bottom vapours!!!
"Hey what's that awful smell"

It's Andy...he's got bum hum!
#farts #trumps #guffs #wind #puffs
by BFREASH February 16, 2010
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