trying to hide what is evidently to most a secret gay sexual relationship being hid by pretending to be straight as possible in public:
Whoa... like cm'on dudes, when you are like telling each other how round those jeans make your asses look in the mall mirrors, like here like out in public, like dudes, that's like way past time to --oh wait 'just bromosexualize it', yea'k, dudes, haha.
by thatis August 2, 2009
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the act of hiding a secret gay sexual relationship with another guy by pretending to be straight as much as possible while in public
Two guys shaving from midway their thighs upward but forgetting that they did, then wearing shorts in public with the completely visible shave lines and inviting you to a party: Nah dudes, gonna pass on the party invite, my girl and I are not into that whole bromosexualized thing, nice try, though, lol.
by thatis August 2, 2009
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A guy who is bromosexual is totally straight. In fact he will punch you in the face if you say that he's gay. He's so totally straight that he has sex with tons of chicks... sure his bro might be in the room with him, maybe videotaping it (with lots of close-ups of the penis)... or doing the same girl at the same time... with their penises touching...

So what if he's always slapping his broham's ass... and always hangs out in the showers at the gym... and yeah, maybe he was in a few circle jerks in middle school... and sure he puts his penis and/or testicles on his friends' faces every chance he gets when they're passed out drunk... and sure that frat initiation thing was a bit weird, but...

HE IS TOTALLY 100% NOT GAY.
Dude: You're so gay.
Bromosexual: Shut up! I will FUCK YOU IN THE ASS if you say I'm gay!!!
Other dude: Heh. Wait... what?
by Bitch-monkey December 18, 2007
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when guys are really good friends, and they make jokes or talk to/about each other in ways that are almost homosexual, but not quite.

as in:
bromosexuality-
bro1: "shit man that hurt."
bro2: "that's not what you were saying last night"
bro1: "dude... i told you not to tell anyone about that."
by missLyma October 31, 2008
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A unique and powerfull relationship amongst bros that words cannot define.
"Hey are those guys gay." "Nah man, they're just bromosexuals."

"I love you man. I don't know whats going on, I think I might be going bromo for you.."
by AGBoss May 12, 2009
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a relationship between dudes so close that, to the outside observer, may appear homosexual.
i went for support with my bromosexual to planned parenthood because of what he stuck it in last night.
by Richard Waffle April 13, 2009
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A male who is straight, but isn't afraid to show love for his bros.
"Man, that kid is so gay."
"He's not gay, he's just a bromosexual."
by The West Side Westbrook September 10, 2011
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