Green’s Dictionary of Slang

1. to subject to an interrogation, to pressurize.

1950

R. Starnes Another Mug for the Bier 23: One [table] is reserved for the reporters and the other is used by the committee staff and whatever witness the committee happens to be toasting.

2. to destroy.

2012

M. Lacher On the Bro’d 230: Mad terrors that my awesome life was gonna be toasted.

3. to kill, to shoot dead.

2023

(con. 1962) J. Ellroy Enchanters 141: Woo-woo. Motel Mike toasts four beaners [...] and it goes to his head.