Top definition
Expert advice or opinion pertaining to Jack in the Box "Restaurants". This is evidenced in memorization of combo prices, and a working knowledge of which employees mess up your order as well as what shifts they tend to work.
Thanks to my in-depth Jack-in-the-boxpertise, I was prepared ahead of time for the $6.01 price tag of a Medium #4 with a Diet Coke, with curly fries replacing those soggy-ass "Natural Cut Fries".
by spicybrad April 23, 2006
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