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1.
A straight guy who has a gay guy as a friend, and who has no problem with going to gay bars. Like a Fag Hag only male.
"How come a straight guy wants to hang around with a gay guy?"
"He's his Stag Hag"
by Jon Dawson March 22, 2007
 
2.
1. A straight man that has mostly gay male friends.
2. A straight man that constantly tries to turn his gay friends straight by engaging the in 'hetero' activities.
1. John is such a stag hag that he's lost the ability to pick up chicks.

2. Casey is a major stag hag. He took the gay boys fishing last weekend, then got pissed when they wouldn't touch the worms.
by maybedevine September 26, 2006