under (one's) hat

(redirected from under one's 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

under (one's) hat

As a secret or in confidence: Keep this information under your hat.
See also: hat