Top definition
A mutant baby spawned from butt sex usaully between two hillbilly males.
An unnatural ocurrance where a baby is concieved in the anal cavity of a hillbilly male or female usally occuring in the deep south
Cousins Jethro and Billy Bob had a hillbilly butt baby. Should we send a card?
by somedeadguy March 21, 2007
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