Top Definition
simply a fart with two tablespoons of shit contained within it.
"I farted today, and had to change my drawers, it was definitly a bastard fart."
by Kelly Harris November 06, 2007
A bastard fart is when a lady quiefs, and a cum bubble comes out.
She was just laying there, and she turned to me and said that was definetly a bastard fart.
by mr. aric burns May 23, 2011

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