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To be, regardless of sexual preference, heavily involved in (or in admiration of) underground gay/queer culture. More specifically applies to those with heterosexual preferences who, if mistaken for being gay, would be unmoved or even flattered.
Does NOT apply to overzealous, jocular, homoerotic posturing, ala Jackass, Wildboyz, making out with your friend to appear edgy, etc.
A: "Is John gay? He's always hanging with that clique of artfags."

B: "I think he's got a girlfriend. He's probably just homocentric."
by Mr. Thrill February 03, 2010