2 definition by MoStang

Top Definition
The most annoying person at a social outing or gathering, especially when alcohol is involved.
Whatshisnuts- "Dude, So-and-so was being 'That Guy' at the party last night."
Theotherguy- "Yeah, especially when he kept screaming then telling people to shut up."

by MoStang June 05, 2007

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Abbv. for "Suck my dick"
Wow, seriously, you can S my D.
by MoStang June 05, 2007

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