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1.
adj: a polite way of saying asshole
well hi there sphincter boy
by Owen June 30, 2003
 
2.
A symonym for asshole or douchebag. Can also be used as a put-down to homosexuals.
"Shut up sphincter boy!"
"That guy's a major sphincter boy."
by Kizz-aj Bizz-enson August 12, 2006
 
3.
a man who acts or is a flaming homosexual
Dude, that guy is a total sphincter boy. Is he gay or what?
by Ryan May 06, 2004