Sometimes the best revenge is a quick tongue. There are plenty of one liners and good burns that can put a person in their place.
some examples...
<offendor> go fuck yourself/fuck you
<you> consider me fucked.
or
<offendor> go fuck yourself/fuck you
<you> not without dinner and a date
I have learned that the meaner, more creative and not necessarily vulgar comebacks seem to shut people up.
What one liners are your favs?