F/S/T
F/S/T means you're trying to ditch your old stuff or swap it for something better. You're basically saying, 'I don't want this junk anymore, and I won't take no for an answer.'
F/S/T: My old paintball gun. Take it or leave it, I don't care.
F/S/T: 200 paintballs for a broken helmet. Let's make a deal.
F/S/T: My old gear. I'm done with this mess.