Top Definition
Far enough beyond absurd or ridiculous that it was clearly pulled out of someone's ass.

A combination of the words suppository and preposterous.
Dude, your story about kicking a rhino in the balls to escape the Shanghai zoo is supposterous.
#preposterous #suppository #absurd #ridiculous #made up word #obnoxious
by Dawg of the Day March 01, 2012
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