a natural response to someone who is screwing you over and pretending they're not. This lets them know that you're onto their BS and you're not playing.
A conversational stopgap measure or oratorical place holder that fills in for witty, biting reparte until a classier and to the point, cutting remark suitable to the occasion can be thought of hours later.
a severe mortal blow to a retreating opponent. used in the final stages of an argument and is the best and only known counter to hey fuck you! this comeback verbally destroys the opposition and gives your opponent the option to walk away or waive that option by declaring a physical war and opening with a shove.