keep (something) under (one's) hat

To not reveal or discuss something publicly. Keep this under your hat for now, but Greg is definitely the one getting the promotion.

keep something under one's hat

Fig. to keep something a secret; to keep something in one's mind (only). (If the secret stays under your hat, it stays in your mind. Note the use of but in the examples.) Keep this under your hat, but I'm getting married. I'm getting married, but keep it under your hat.

keep under one's hat

Preserve the secrecy of something, as in I'll tell you about it if you promise to keep it under your hat. This usage alludes to hiding a secret in one's head, covered by a hat. [Late 1800s]

keep something under your hat

INFORMAL

If you keep something under your hat, you do not tell anyone else about it. Very few people know, so keep it under your hat. Look, if I tell you something will you promise to keep it under your hat? Note: This was a slogan used to promote security in Britain during the Second World War.

keep something under your hat

keep something a secret.

ˌkeep something under your ˈhat

(informal) keep something secret: I’m going to apply for another job, but keep it under your hat for a while, will you? OPPOSITE: let the cat out of the bag

词组	keep (something) under (one's) hat
释义	keep (something) under (one's) hat keep (something) under (one's) hat To not reveal or discuss something publicly. Keep this under your hat for now, but Greg is definitely the one getting the promotion. See also: hat, keep Farlex Dictionary of Idioms. keep something under one's hat Fig. to keep something a secret; to keep something in one's mind (only). (If the secret stays under your hat, it stays in your mind. Note the use of but in the examples.) Keep this under your hat, but I'm getting married. I'm getting married, but keep it under your hat. See also: hat, keep McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. keep under one's hat Preserve the secrecy of something, as in I'll tell you about it if you promise to keep it under your hat. This usage alludes to hiding a secret in one's head, covered by a hat. [Late 1800s] See also: hat, keep The American Heritage® Dictionary of Idioms by Christine Ammer. keep something under your hat INFORMAL If you keep something under your hat, you do not tell anyone else about it. Very few people know, so keep it under your hat. Look, if I tell you something will you promise to keep it under your hat? Note: This was a slogan used to promote security in Britain during the Second World War. See also: hat, keep, something Collins COBUILD Idioms Dictionary, 3rd ed. keep something under your hat keep something a secret. See also: hat, keep, something Farlex Partner Idioms Dictionary ˌkeep something under your ˈhat (informal) keep something secret: I’m going to apply for another job, but keep it under your hat for a while, will you? OPPOSITE: let the cat out of the bag See also: hat, keep, something Farlex Partner Idioms Dictionary See also: keep something under your hat keep under hat keep under one's hat keep (something) under one's hat, to pass the hat pass the hat (around) titfer hang (one's) hat on (something) top hat stovepipe hat
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