It doesn't have to be a gay guy. Could just be a guy that happens to be good at playing to the role. I know several that fit that description. Me personally, I would've pulled him off the side and spoken to him quietly, if he didn't get the hint.....pulled out a rolled up newspaper and hit across the nose like a puppy that did something wrong. There's a point where rude, crude, and socially unacceptable becomes more than raunchy jokes and it sounds like he crosses it frequently.

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"BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Will he offer me his mouth? BOY: Yes. GIRL: Will he offer me his teeth? BOY: Yes. GIRL: Will he offer me his jaws? BOY: Yes. GIRL: Will he offer me his hunger? BOY: Yes. GIRL: Again, will he offer me his hunger? BOY: Yes! GIRL: Yes. BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Yes. BOY: I bet you say that to all the boys!" -Meatloaf