Are you dim?

used towards someone who is stupid or idiotic but said in a nicer way

wow did charity really just say that? Are you dim?

Great For You

A polite business way to say "fuck you".

Man 1: I was driving to work today and my brand new Porshe got a flat tire.

Store Clerk: Great for you.

you crazy

Obviously a shortened version of "you're crazy." Meaning: 1. Why that is just silly. 2. That's another stupid idea from you. 3. Hello, I'm with crazy over here. 4. You just plain crazy.

Lindsey insisted that Scott were the velvet jumper, to which he replied, "you crazy."

you like it, it likes you!

statement on ancient 7-up bottle (the 7 oz guys) -funny thing...-thats just the relationship i have with my cannabis!!

you for a muggle bra? -fuckin' ay! you like it, it likes you!

You Fail

Increasing common 'You Fail' is used in means of shutting someone down shut down
Origins point towards people posting pictures of projects or attempts and things that have failed and commenting 'You Fail'.
You Fail has worked its use quite like the term 'Ya Mum'.

Kevin: 'Hi Paul!'
Paul: 'No Kevin, You Fail.'
Kevin: 'Ya Mum Fails.'

you out

A way of saying "you leaving"

You: yo my mom said we leaving
Marcus: you out?
You: yeah bro
Marcus ight bet

*proceeds to dap you up*

Are You Dumb

The reply given to someone who says something which you believe to be false, untrue or against your opinion.

R.H: "Arsenal are going to win the Premier League this Season"
S.K: "Are You Dumb!!!!!! Its gonna be Man Utd!