blow sky-high, to

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

blow sky-high, to

To refute completely, to explode a thesis or idea. While this expression has a modern sound, it is not so very new. Andrew Jackson, in a letter of 1845, wrote, “Put your veto on them both, or you and your Secretary will be blown sky-high.”
See also: blow