blow the lid off

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blow the lid off (third-person singular simple present blows the lid off, present participle blowing the lid off, simple past blew the lid off, past participle blown the lid off)

1. (idiomatic) To uncover (a secret or scandal).
   • 1979 April 28, John Graczak, “The Sacred and the Profane”, in Gay Community News, page 16:

     Her presence forces churchpeople to consider on what grounds gay relationships can be sanctioned within the community. This question blows the lid off of notions of the special sacredness of heterosexual monogamy.

• lift the lid

• “blow the lid off”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “blow the lid off something”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “blow the lid off something”, in Collins English Dictionary.