Code word for any attractive boy that walks past when you’re with friends. You can use it in a sentence or just say “pop” or “popcorn”. Your friend responds “no popcorn” or “popcorn”. They can also respond using a sentence.
The stand-in name for something un-named and doesn’t need a definition in naming. However once referred to as Popcorn, it is instantly forever known as Popcorn.
(noun)
Steve: “what shall we call the bar”
Ben: “dunno, we can decide later, for the time being let’s refer to it as Popcorn”
Steve: “Popcorn it is”