1. A name for a professional who is completely incompetent in his field. (ie an accountant in rural Kansas)

2. A tiny penis.
That damned piss knuckle did my taxes, and now I'm being audited by the IRS.

or

My piss knuckle hurts when I pee.
by derikny2 August 3, 2010
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A feral, disgusting, idiotic person. These people are completely incompitant and irritating. It is a drag to be around them. Suicidal thoughts may arise when around this person. They can also be associated with the word "ledmong"
and he was, a Piss Knuckle
by Penisin May 5, 2021
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