A
slang term that combines the concepts of "combustion or burning, in which substances combine chemically with oxygen from the air and typically give out bright light,
heat, and
smoke" and "to unhire an employee" (to dismiss someone from their job). Used to describe both intense criticism and the act of terminating someone's employment.
After that disastrous presentation, the
boss decided to fire him, and the team spent the rest of the
day roasting him in the group
chat.