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a person who enjoys correcting others' grammar on the Internet.
guy: where's that guy get off telling me I used the wrong "you're" in that sentence?

friend: must be some kind of urologist
by happytester December 31, 2008
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A complete dumbass in every sense of the word, making a complete fool of oneself each time one speaks. An idiot. Often accused of having piss for brains, hence the term.
"Who's he? A urologist?" "Yeah, he has piss for brains."
by Kenny "Bujie" Reeder June 12, 2008
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