keep (something) under one's hat
idiom
: to keep (something) secret : to not tell anyone about (something)
I'll tell you what happened, but you have to keep it under your hat.
Dictionary Entries Near keep (something) under one's hat
Cite this Entry
“Keep (something) under one's hat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keep%20%28something%29%20under%20one%27s%20hat. Accessed 29 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share