quick and usually funny answers and remarks in conversation
Oscar Wilde's plays are full of witty repartee.
http://dictionary.cambridge.org/define.asp?key=66944&dict=CALD
a rapid and witty response in conversation, especially one that turns an insult back on its originator; or a succession of such replies in a dialogue between characters (usually in a drama). The term may also be applied to a person's talent for making witty replies.
Prudent insult in retort. Practiced by gentlemen with a constitutional aversion to violence, but a strong disposition to offend. In a war of words, the tactics of the North American Indian.
A repartee is what a person thinks of after he becomes a departee. — Dan Bennett
http://www.answers.com/topic/repartee