under one's hat

English

Pronunciation

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Prepositional phrase

under one's hat

1. (idiomatic) Concealed; confidential; secret.
   • 1939, G. M. (Review of General Manpower by John S. Martin)," Time, 30 Jan:

     Orestes Jones kept his real ambitions under his hat until the time struck.

   • 2009, Michael Pryor, Blaze of Glory, →ISBN, page 98:

     The Prime Minister jabbed his cigar at Sir Darius. 'I told you those Holmlanders had something under their hats...."

Translations

secret — see secret

References

• “under one's hat”, in OneLook Dictionary Search.