Bu 

Bu is Zu's soulmate. Bu is the female counterpart of this ever-lasting couple.

OMG, that's Bu, Zu's soulmate.

Bu by TinTin May 28, 2021

Bu 

A sexy man with a fat cock

Damn Bu Reh you fine asl

Bu by BBC_bu July 8, 2021

BU 

Being unreasonable

I'm not sure if I'm bu but....

BU by Whaodie August 21, 2022

BU 

Some reddit slang meaning break up or broke up

Person 1: Did you hear that faggot and his boyfriend BU?
Person 2: No, I don't care nigga

BU by X40000000000000X April 19, 2024

Bu 

Short for “butt urine” to describe diarrhea so bad it is like pure liquid shit peeing out your butthole.

Yo, thank egg salad left me with the bu!

Bu by Wyobc May 19, 2024

Bü 

1. Appreviated form of the surname Butler, adapted to include umlauts to aid pronunciation in written text, appeared in England, circa 2002.
2. An 1337 person.

Bü is 1337

Bü by Sam January 2, 2004

bu! 

scare

man1: bu! man2: aghhhh

bu! by Jamie5353 April 1, 2020