Quippage

A word used to describe cutting insults or jibes of great wit which few people could pull off regularly.

If someone is said to deliver good quippage, they are known for their excellent conversational skills and uncanny ability to bring rude jackasses down to size with just a few well-timed lines.

Coined by comic superhero Spider-Man in the recent "The Spectacular Spider-Man" comics, known for it's genre-savvy dialogue.