1 definition by bumboo23

bum boo

A term usually used for describing ones back passage activity (FARTING)

GIRL 1 "oi whats that smell?
GIRL 2 " i just did a bum boo"
GIRL 1 " what you just farted"
GIRL 2 " yea and it fucking smells"

by bumboo23 May 17, 2010