blowback

As a noun blowback

is (firearms) 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.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between explosion and blowback

is that explosion is explosion while blowback is (firearms) 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.

As nouns the difference between backlash and blowback

is that backlash is a sudden backward motion while blowback is 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.

As a verb backlash

is to cause or set off a backlash.

As nouns the difference between setback and blowback

is that setback is an obstacle, delay, or disadvantage while blowback is 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.

As nouns the difference between slowback and blowback

is that slowback is (archaic|slang) a lubber; an idle fellow; a loiterer while blowback is (firearms) 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.