-usually a response to a question, but can be used in response to almost anything.
-when used improperly it is a hint for the person talking to shut the fuck up.
Guy1: "Hey guy, you going to the mall tonight?"
Guy2: "Yeah man."
Guy1: "How did you do in calculus class?"
Guy2: (pause)"Yeah man."
an abriviation of a yes and no answer.
commonly used by less developed human beings, in this case nicholas.
(only acceptional when used by female users, i.e frankie)
person 1: you know that nick kid? hes cool..
person 2: YEAH MAN