blowback

A type of action where the pressure from the fired cartridge blows a sliding mechanism backward to extract the fired cartridge, chamber another cartridge, and cock the hammer.

An unintended adverse result, especially of covert political action.

The act of shotgunning (inhaling from a pipe etc. and exhaling into another smoker's mouth).

On a steam locomotive, the reversal of exhaust gases when the regulator is closed without using the blower.

Synonym of backscatter.