Prouda you

Short form of "proud of you"

Kid: I peed but ain't no used my hands!
Dad: Son, I'm so prouda you...

You kill

A phrase with a similar meaning to "you rock!", "you're gonna own it! ", "you go girl!", etc etc.

Dude 1: Dude are you sure it's the right time to ask her out

Dude 2: Of course! You kill bro

who is you?

a question asked when concerned with/questioning/mad at something someone has said or done.

I went to spukies but i got a grilled chicked instead of a chicken finger plate. who IS you?!

you fools

A term used by stereotypical evil supervillains to make their goons (see: henchmen) go after the hero.

"Get him you insolent fools!" or just plain old "Get him you fools!"

you know

The perfect response to any question asked. Can be used when one just doesn't want to answer a question or when one doesn't know how to answer a question.

Girlfriend: "So what exactly did you do when SHE came over last night!?"
Guy: "You know."

Teacher: "Billy, think about this. 3x + 4 = 7. What is 'x'?"
Billy: "You know."

You Dumbass

A word used to insult other people because they did something you didn't like.

YOU DUMBASS! WHY DID YOU PUNCH ME IN THE FACE?

Steal you

To take you out on a date/hangout

Person 1: “hey can I steal you for a bite to eat?”
Person 2: “sure! where are we going?”