1 definition by Darkmaggedon

Top Definition
The so-annoying loosening of your belt that ends up interfering the piss flow and thereby giving it a whole new, random and really "wet-panting" result
A: Dude, WtF happened in there? look at ur pants...

B: Remember that belt Jill gave me for my bd last week.

A: yeah... so?.

B: Beltpiss.

A: fuuuuuuuuuuuuuuuuu... hold my belt i need to go now.
by Darkmaggedon October 04, 2009

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