In my 30s, and while I've heard "let's 86 the _____" numerous times, I honestly wouldn't have connected that to "86 cherries" on an order.
I've worked in food, fast and fancy, and nobody would say "86 cherries" instead of "no cherries". Clarity is conducive to a smoothly flowing kitchen.
It's gonna be peak face-eating season during holidays when my parents go to retire during this presidency but find out that they can't because social security doesn't exist anymore, 75% of their paycheck goes to either the military budget or kings tribute tax, and everything has doubled in price.