1 definition by NotABum

Top Definition
When Something is so cheap and hilarious that it is described as bum- tastic. Usually used to describe good for nothings, slobs, and lazy assholes.
guy 1: Did you clean your room and brush your teeth today?
guy 2: No, I have a life you know!
guy 1: Thats bum-tastic!
by NotABum October 20, 2009

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