(idiomatic, colloquial) Used to express the speaker's skepticism about a preceding statement concerning some desired or assumed state of affairs.

An expression of gratitude. / (as a modifier before a noun) That expresses thanks.

(idiomatic, dialect, slang) Indicates agreement, approval, encouragement.

(idiomatic) Expresses support, agreement, certainty or emphasis. / (idiomatic, informal) Certainly, you're welcome; a reply to thank you or to a request.

A polite way of saying no in response to an offer.

Used other than figuratively or idiomatically: see you, know. / (informal) Expression signifying a pause or hesitation.

Used other than figuratively or idiomatically: see screw, you.

(slang, idiomatic, mildly vulgar) less offensive version of fuck you.

An act of defiance and contempt.

(idiomatic) Said when handing something over to someone or doing a favour to them, usually to draw the recipient's attention to the exchange; equivalent to “thank you” when receiving something.