A beasta fart is a person who constantly farts to the point that their anus whole begins to strech 25 diameters, and then they begin to dyahreia all over, the dyahreia is so massive that it consumes as much space as an actual BEAST would consume sitting down.
That damn beasta fart shitted in the back seat again.

The beasta fart went running down the street with shit dangling from the bottom of her white draws.
by dolores June 3, 2005
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