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Phrase(s): blow someone or something to smithereens [and] blow someone or something to bits; blow someone or something to pieces
Lit. to explode someone or something into tiny pieces. (See also blow something to smithereens.) • The bomb blew the ancient church to smithereens. • The explosion blew the tank to bits. • The explosion blew the car to pieces.
McGrawhill's American Idioms And Phrasal Verbs