Top definition
{OM-nee-top}

n. A bisexual man who doesn't care whether the person he ends up with is a male or female, as long as that person takes the submissive role in sexual situations
"Dude, are you trying to hook up with that chick or her boyfriend?"

"I'd be happy to fuck either. I'm an omnitop."
by Gregrrrrs November 05, 2013
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