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1. The mysterious clump of matter that appears, without warning, in the hairy part of the asshole.

2. Some one who has the IQ level tantamount to the aforementioned hairy asshole.
"Oh man, I was so itchy untill I found a massive cluft of God-knows-what when i went to take a shit!"

"He just lit fireworks in his pants! What a cluft!"
by dope nose August 16, 2005
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