This is a mental depository where a person stores all of her witty quips, phrases and comebacks.

What a word is to a Dictionary, a quip is to a Quiptionary.
Offended by Joey's low blow at her outfit, Mary thumbed through her Quiptionary until she landed on the perfect comeback, "Hey, isn't it time for you to wax your back, Douche Bigalow?"
by Emily Anne Porter January 16, 2009
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