You are a 12 yo white girl that wants to be in the LGBT+ community, so you invent that you are homosexual, but you only like one gender, it's like being bisexual, but only liking one gender, basically, or you're homosexual or straight.
Jimmy: hey how are you
White 12 years old girl: im semi bisexual
Jimmy: what the fuck is that
White 12 years old girl: its that you are bisexual but only like one gender,
Jimmy: so you are straight?
White 12 years old girl: No, IM SEMI BISEXUAL HOMOFOBIC
Jimmy: shut up you stupid bitch, get some parents
White 12 years old girl: im semi bisexual
Jimmy: what the fuck is that
White 12 years old girl: its that you are bisexual but only like one gender,
Jimmy: so you are straight?
White 12 years old girl: No, IM SEMI BISEXUAL HOMOFOBIC
Jimmy: shut up you stupid bitch, get some parents
by secmansis February 13, 2022

When you have school or work tomorrow, and you feel sick, but you know damn well that it's not sick enough to not go
Mom: you have school tomorrow
Jeff: everything feels wrong
Mom: L bozo
Jeff: welp, guess I have semi-sickness
Jeff: everything feels wrong
Mom: L bozo
Jeff: welp, guess I have semi-sickness
by ff69 August 11, 2024

when someone just shows up where you are at, and it seems random, but really they knew you would be there
by Alison and Amanda December 21, 2007

Its when a guys breath smells so bad because he did not brush his teeth from last nights Dirty Sanchez he received.
by Professor Benoit Mandelbrot October 3, 2017

During a guest-hosting slot on the BBC2 program "Never Mind The Buzzcocks", James was asked what the line meant and said that "Semi" referred to a "semi-automatic rifle".
by Throsyios November 5, 2017

A phrase used to describe someone who's barely holding it together, but still managing to show up to life—often with chaotic vibes, questionable decisions, and a diet that can’t include bread.
by alw259 May 6, 2025

A baby semy girl is an unknown species a rare species the most beautiful thing a human could see there are only one baby semy and one baby semy boy in the world
by Hello my dark friend March 10, 2018
