What is Knubbin?
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Knubbin (pron NUB - IN)
The bump formed in your fly while sitting down caused by your zipper. Sitting down causes looseness in the material surrounding the fly and the less flexible zipper, velcro, button, etc, forms into a funny shaped lump.
Ted: Hey look, Fred's got a boner! Haha!
Fred: Na way man, it's a knubbin
See
Random Words:
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nerdy asian kid. Probably plays the oboe, and is really good at math, but sucks at all sports.
Person 1: Look at that kid...so weird!
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