(idiomatic, colloquial, chiefly Commonwealth of Nations, may have disparaging nuance) You (plural).

(US, informal) as an answer to a request: sure, no problem

(colloquial) Yourself and your family or loved ones, usually in salutations.

(idiomatic) A sarcastic, rhetorical response to an obvious statement.

(idiomatic, colloquial, chiefly Canada, US, Australia, New Zealand) You (plural).

(derogatory) Sarcastically drawing attention to somebody's appearance or behaviour.

a statement of disagreement or disbelief, especially when highlighting hypocrisy

Synonym of get along with you (“light-hearted expression of disbelief”)

Synonym of get along with you (“light-hearted expression of disbelief”)

Used to indicate that the speaker hopes the listener understands what is being said.