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The transitive butt property states that: the dumbness of someone's butt is equal to or greater than the dumbness of that person's head.
by lunar April 04, 2003
How to tell if someone's butt is stupid.

The Transitive Butt Property clearly states that the stupidity of someone's butt is greater than or equal to the stupidity of that person's head.

stupid (butt) >or= stupid (head)
by discoblob October 26, 2003