When you are best friends with one person to such an extreme that you feel like you are cheating on them if you hang out with anyone else. That friend is your other half and you love them so much that you cant think of anyone else who might make your day better. You are loyal to them without a fault and would marry them if you had the chance, but only as a permanent friendship and nothing romantic. You two complete eachother.

You will always be my bestie boo.

Bestie Boo by sillypinkpanda May 26, 2016

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bestie boo bæ

a goofy way to say best friend or ur crackhead bestie friend.

u see that girl over there that’s ma bestie boo bæ

bestie boo bæ by bestieboobækk January 10, 2020

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bestiebangtantv

A well known kpop TikToker that is an Army

bestiebangtantv is a well known tiktoker

bestiebangtantv by bestiebangtantv December 22, 2020

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