I LAUGHED FOR HALF AN HOUR. FUN.

Banter ("mocking", "joke") - a joke on the interlocutor with elements of irony, sarcasm. Usually banter occurs in the presence of the ridiculed subject.

The verb is to joke, that is, to mock, to make fun of. It is used in non-natural conversations, implying some theatricality[1], pomposity, playfulness.