A girl or boy that are socially inadequate, and/ or think they are gods gift when they are far from it.
That girl is such a Trinny!
by DavidGG1 August 02, 2007
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A girl who’s level of hoe-ness is out of control, a thot, a whore, a basic bitch, a dumb broad essentially. A trinny has a collective three brain cells and most likely talks similar to a valley girl. She will most likely he spotted in a tube top or something ratchet and flirting with every guy in the vicinity.
Maggie: Oh my god that girl is such a fucking thot
Shannon: What a TRINNY bitch I’m disgusted

Maggie: Someone put a stop to this thottery
by Shanndog January 21, 2019
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A move that signals to the opposite sex that you are interested in copulating. It is specifically done by placing one hand on the floor, buttocks in air, and then gyrating buttocks in a up and down motion. Usually made by someone of samoian descent that is under 5'4 and has been drinking heavily.
That girl totally wants to hook up with Albert. They were out dancing together and she did a trinnie.
by Phone Girl July 10, 2008
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A guy who talks a lot of shit to people and always playing around with eveyone and is a jerk in lakes mostly every girl and In some country’s Trinnis is a bad work. Mostly if someone’s name is trinnis they have a very big penis but never looses his V card. If ur trinnis 99.99% chance ur parents are rich and ur dumb who always gets spoiled but in America there’s only 76 people named trinnis
That boi trinnis always Trynna flex at school
by Dr. Cokkernickel December 23, 2018
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