jargon.artrocity.com
New Hacker's Dictionary the Jargon File v 4.4.6
1. n.Any completely inoperable system or component, esp. one that has just crashed and burned: “Uh, oh ... I think the serial board is toast.” (This sense went mainstream around 1993.)
2. vt. To cause a system to crash accidentally, especially in a manner that requires manual rebooting. “Rick just toasted the firewall machine again.” Compare fried.