under hat
under (one's) hat
In confidence; as a secret; without being disclosed to others. Keep this under your hat for now, but Greg is definitely the one getting the promotion. As long as it stays under his hat, I don't mind giving John some insider tips.
See also: hat
Farlex Dictionary of Idioms.
under (one's) hat
As a secret or in confidence: Keep this information under your hat.
See also: hat
American Heritage® Dictionary of the English Language, Fifth Edition.
- keep something under your hat
- keep under hat
- keep under one's hat
- keep (something) under (one's) hat
- keep (something) under one's hat, to
- pass the hat
- pass the hat (around)
- (as) black as (one's) hat
- titfer
- top hat