BYI

Byi stands for before you interact, typically used on social media and other online platforms.

by offpercs May 27, 2022

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Stands for Beastly Yeast Infection. Used, obviously, if someone has a very bad yeast infection or someone thinks they have a yeast infection.

Shanon: Ugh, i think i have a yeast infection
Kristin: Yea, a BYI, beastly yeast infection!

by J. Chan October 14, 2006

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BYY

Basganin Yandan Yemisi. a.k.a Fateh. Used for a gay still in the closet when married and have kids.

BYY did it again.

BYY tried to touch my junk bro!

by nuttyprofessor1907 December 18, 2018

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