something that is moybueno.
i.e. good, fashionable, or anything along those lines.
Emily: Whoa, your jacket is moybueno.
Diana: It's totally tresbien.
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a woman who is really a dude.
could be a woman with a penis who likes women, or just a woman who can mentally relate to guys (lesbian or not).
also spelled tresbian
that chick is hot! too bad she's a tresbien.
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