To express feelings of Gratitude, Wickedness, Dopeness, Likeability, Sickness etc..

Must cite Bob Marley's - Kinky Reggae as possible origin of the phrase. An excellent superlative.

Fuck Donald trump, AKA the worst president ever.

Noun, meaning any pleasant gesture resulting in a favorable outcome. By not being a nice one, it means that the person being talked about is, in fact, not a nice one. Although this is a noun, the context may vary and can be used as a pronoun, adjective, and about every other form you can think of.

modern English way of saying "bye, cool, see ya later", with the general feeling that it has been pleasant to see you

Nice One

A very attractive man you could see yourself with.

A drop dead gorgeous guy.

when a deal, is not a deal