We all know "that guy." The guy who takes proving he is straight and manly too far.  If you drink two beers, he's on his sixth and calling you a pussy for not keeping up. If you like a car, he likes the one that's faster, more expensive, more powerful etc...

So, let's list some ways to fuck with him

Ask him what he plans to order, and when the server comes over, order for him. No one will think anything, but he will be nervous that everyone will think you guys gay, and he's the taker.

On his birthday, blow out his candles before he can. Its unspoken that you stole his wish. How can you not sound like a bitch when complaining someone stole your birthday wish.

Now you...

"Do your parents know you're gay"

I just annoy the fuck out of him until he gets use to it, and then he either wont mind it, or he'll do it to