Green’s Dictionary of Slang

toast n.3

also toaster
[it turns people into SE toast]

(US black) a gun.

[US]50 Cent ‘Wanksta’ 🎵 We in the club doing the same ol’ two step / Gorilla unit cause they say we bugged out / Cause we don’t go nowhere without toast we thugged out. [Ibid.] We dont go nowhere without toasters, / We thugged out say U a gangsta.

SE in slang uses

In phrases

on toast

1. subject to teasing, deception.

[UK]Regiment 27 June 203/3: ‘[H]e thought the Sergeant was having him on a bit of toast, “boiling him,” as the men call it, sir’.

2. a general intensifier, e.g. this is shit on toast.

[US]R. Price Blood Brothers 2: Sunday. Shit on toast. Family day.