1 definition by Dave matthams
when one visits the bathroom to relieve ones self of bodily waste, they are giving birth to bum babies. Bum babies come in all kinds of varieties, brown, greeney-brown, fat, thin, nutty, the list goes on...
Vicki, I just gave birth to a bum babies, it was so beautiful that a tear of joy rolled down my face.
by Dave matthams January 24, 2007