Is “Blowback” a Scrabble word?
Yes
BLOWBACK
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Blowback
noun
1.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.
2.An unintended adverse result, especially of a political action.
3.The act of shotgunning (inhaling from a pipe etc. and exhaling into another smoker's mouth).
Synonyms: fallout, fallout