F.P.A.N.O.
Fixed Price and No Offers means you're not playing games. You're just gonna pay the price, no arguing, no begging, no 'please just lower it by one' nonsense.
"I'm not even gonna negotiate. I'm paying 1000 for this hat, and that's final."
"No offers. Just take it or leave it. No drama."
"I'm not gonna waste my time. I'm buying it for 500, and that's that."