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blow sky-high

1

Destroy by explosion, explode, as in Once the charge is set, get away fast or you'll be blown sky-high. [Early 1800s] Also see under blow up.

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2

Refute completely, as in The lab report has blown your theory sky-high. [Mid-1800s]

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

Related Words

impair, annul, revoke, undo, abolish, nullify, discredit, quash, negate, abrogate, disqualify, overrule, undermine, annihilate, abate, refute, overthrow, neutralize, negative, nix