What you doin? 

used not as a question but more as a statement as if to say "stop that now because you lok like someone who doesn't understand socially acceptable behaviour"

usually complimented with a sigh, a look to the floor/heavens and a shaking of the head

YOUR FRIEND eats a burger and spills 70% of his ketchup on and around his body

YOU say "What you doin?" and then walk off

What you doin? by willamundo February 6, 2008

boy what you doin in dis neighborhood?! 

usually the last thing a white person visiting compton hears before he is either beaten or shot by a group of angry men.

the lesson: watch yo back in compton!

boy what you doin in dis neighborhood?! by Bloody Mary May 24, 2004

boy what you doin in dis neighborhood?! 

Fucc Compton. This phrase is what compton niggas hear before dying in the LBC

niggas know aint nuthin thats harder,
than niggas from the city right beside the water

boy what you doin in dis neighborhood?! by Loc- O June 21, 2004

oh no baby! what is you doin??? 

A famous catchphrase Nick Joseph (nicknpattiwhack_) says in his videos with his friend Dan while doing "pranks".
This phrase became a meme on Black Twitter as of March 2017.

*Goes on a shopping spree*

My bank account: oh no baby! what is you doin???

oh no baby! what is you doin??? by Ur Sexc Sharmuta March 27, 2017

what you doing tonight? 

When you have a retarded friend and you ask this they will say your mom.

Kid: What you doing tonight?

Kids retarded friend: Your mom.

what you doing tonight? by I got highground November 7, 2018

you know what you doing 

taken from the zero wing dialect (see all your base are belong to us). stands for you know what you are doing, or we're counting on you. Usually achieved by launching all zig for great justice, when we have no chance to survive and are making our time.

"I know what im doing!"
"you know what you doing! launch all zig, for great justice!"

you know what you doing by baklava March 14, 2004

what you doing 

A text sent by a dude who wants you to come over for sex. Usually sends it to more than one person at a time to increase his chance of getting lucky. (the recipients are not aware that he has sent the text to anyone but them) If he gets more than one response, he replies to his preferred option. The non-commital nature of the question makes it difficult for any of the unchosen options to accuse him of any wrongdoing.

(Sends text to four girls) "what you doing"
Girl number two is first to respond with "not much, what about you?"
But before he can respond, girl number one (his preferred option) replies! She says "I'm free, wanna catch up?'
All he has to do now is tell girl number two he's tired and is going to bed and tell girl number one to come on over!

[booty call brush off casting the net

what you doing by Fox99 December 31, 2015