A term used to define an unknown number that can be readily identified or presented in its place. Also used in place of a number you will define later.
John: "How many chickens are in that coop?"
John: "Oh, okay, well I'll take all of them."
Mary: "Okay, I'll go count them. That'll be Jelevendy dollars."
Max: "How many lights are on that Christmas Tree?"
Taylor: "About Jelevendy; what does it matter?"