someone whose sexuality is complete only if composed of three distinct yet complementary aspects. These are the active masculine the passive feminine and the reconciling neutral aspects. Only by accepting the third or neutral aspect, which is both/and as well as neither/nor feminine and masculine can one arrive at a sexuality where the two opposite sides are fully integrated and thus reconciled in the third. This gives rise to a mature sexuality that allows for integrating hetero-erotic homo-erotic and auto-erotic orientations.
How if not as a trisexual could Pink reconcile her sexual desire for the same and the other sex with the deeply felt erotic desire for her own self?
by chilily August 19, 2007
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a person who is sexually attracted and interested in men, female, and themselves.
naw, i'm trisexual. i'll try anything
by brazilianbigbooty March 27, 2011
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Someone who is sexually attracted to girls, guys, and goldfish.

Or someone who will try anything sexual
Janie is a trisexual, she's been with girls, guys and goldfish
by Pixxxie April 21, 2011
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Any person who will engage in any sexual act at least once
Man, that ho is such a trisexual cuz she will try anything you want
by Christina AKA Derf April 2, 2003
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a person who has sexual feelings towards men women and dogs. they enjoy saying how much they want a dog. they often deny this. often theis people own a dog.
colin- "i so want that dog"
john- "where do u want that dog? in the ass"
colin- "no im straight"
john- "then why do u shag your dog?"
colin- "i cant help it i need help"
john- "yes..yes u do"

bob- "what wrong with that guy"
john- "oh hes just trisexual"
by the maths crew :D March 7, 2010
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A female or male, usually a female though, who claims to either have previously or is willing to currently try any sexual act, at least once. Also called a trysexual.
Male to female: So how do you feel about Menage a trois?

female to male: Well, I'm a tri-sexual, so i'll try anything once! And if i like it...well, then you can just call me a freak.
by Nay December 20, 2004
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A person who switches between being straight, gay and bi-sexual based on their mood and current emotions.
Julie- "Wow, he's really cute."
Anne- "Oh yeah, he is."
~fifteen minutes later~
Julie- "Omigosh. Check out that chick over there!"
Anne- "Wait... I thought you were straight. You're bi?"
Julie- "Nope. I'm just trisexual."
by slayson October 4, 2010
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