lift the lid

lift the lid (third-person singular simple present lifts the lid, present participle lifting the lid, simple past and past participle lifted the lid)

1. (transitive with on or off) (chiefly UK, informal, figuratively) reveal secret information.

   Synonyms: take the lid off, blow the lid off, lift the veal on, lift the curtain on

• “lift the lid on”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “lift the lid on”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “lift the lid on something” (US) / “lift the lid on something” (UK) in Macmillan English Dictionary.