Listen up, simplicity is perfect.

This is without a doubt the perfect comeback when challenged, insulted or demeaned whether it be verbally or electronically.

The best way to effectively say this insult / diss is dependent on each individual scenario.

For example: Susan your best friend calls you a bitch out of nowhere for sleeping with her boyfriend, Brad. Your reply is a calm who u. She will then most likely and stupidly reply "who me" this is where you make that bitch Susan feel like an absolute moron and you then finish her off with "YA U".

Another example: In a heated verbal debate via text or in person, insults are being thrown and the only way to successfully achieve a successful and enjoyable victory is through aggressively asserting a "who u" thus ending the argument.

A more joyful example: You are intoxicated in your friends minivan coming back from the bar in downtown Royal Oak passing through the privileged city of Berkeley and Birmingham. You then see someone minding their own business walking with their dog. Being intoxicated you yell "WHO U" at the top of your lungs. Not only does this completely confuse the individual for weeks and startle the individual momentarily, but it also provides you and your friend group with the best laugh of your life. This scenario is highly recommended.

TIP: Mix and match different voices, pitches, vocal ranges and lung expenditures to find your perfect "who u" for any given scenario.
who u
ya u
whom, thou
who me
by itchygooch69 June 11, 2018
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Same as “Who are you?” Or “Who you is?”
I’ve never seen you before. Who u b?”
by cuntrycornbreadgurl September 21, 2019
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wh ra u tlak bout m0fo be s,.ike $$$$
saw#@@wqqq %%^^&&#$#$
by WOO June 21, 2004
A expression used as an insult to a person and their friends, family, etc.
Andre threatened Christopher's life , so Christoper said boldly "Fuck You And Who U Run Wit!!!"
by Ace Deuce August 27, 2006
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1. n. Bastardization of Uday and Qusay, sons of Saddam Hussein. Who day & u say is used to describe two dumbass males who are looking for trouble (often through violence) and will soon find it. Also, Columbine Kids, or Dylan and Eric.
"Look at who day & u say over there, trying to fuck up the Governator's Hummer."
by foshizzle May 12, 2004
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Terrible spelling of Saddam Hussein's sons, Uday and Qusay.
Who day & u say is the only way I could think of spelling Saddam's son's names...
by Isi Oamen June 16, 2004
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The joke WHO

is boring

u come back at it by sayin
((The one who fucked you in the ass))
That’s who
Chad: who
Tyler: who asked
Moe: the one who fukd u in the ass
by zaworldo August 10, 2021
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