When your father fucked your mother in the arse to prevent her getting pregnant. However his cam ran out her arsehole, down to her cunt and here you are... a dribble bum baby. Commonly used as an insult
by Sinnie666 November 23, 2017
When a guy has blown his load up a girls ass the spunk dribbles down to the girls pussy and then 9 months later a baby is born - the bum dribble baby is born!
by Ste Crayston June 19, 2006