Top definition
One who seems untrustworthy, and/or dirty and/or clearly addicted to some sort of drug.
A sketchy prick would also be considered one who walks around in public, having an open conversation with themself.
Look at the Sketchy Prick over there.

Heads up, there's a mad sketchy prick coming this way.
by I Love Greeny October 01, 2009
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