The idiom "keep it under your hat" means to keep a secret or to not share information with others. It's a way of telling someone to keep something confidential or private.
The phrase comes from the idea of keeping something hidden under a hat, which is a piece of clothing that covers the head. If you keep something under your hat, it's hidden from view and not visible to others.
You can use this idiom in a variety of situations. For example, if you have a secret that you don't want others to know, you might say "keep it under your hat" to someone you trust. Or, if you're discussing a sensitive topic with someone, you might ask them to "keep it under their hat" so that the information doesn't get out.
Overall, "keep it under your hat" is a useful idiom to use when you want to emphasize the importance of keeping something private or confidential.
• "As a journalist, I must keep certain information under my hat to protect my sources and maintain professional integrity." (explaining the importance of confidentiality in professional writing)
• "I have some insider information about the merger, but I'll keep it under my hat until I confirm it from the reliable source." (referring to keeping a secret while waiting for confirmation)
• "I heard a rumor about the new product launch, but keep it under your hat until the official announcement." (advising someone to keep a sensitive information confidential)
• "I have a secret, but keep it under your hat, okay?" (informing someone to keep a secret)
• "I can't reveal the surprise party details yet, so keep it under your hat for now." (asking someone to keep a secret)
• "I appreciate your concern, but please keep it under your hat as it could affect the company's reputation." (requesting someone to keep a particular information private)
• "As a spy, it's important for me to keep sensitive information under my hat and not let it fall into the wrong hands." (talking to a fellow agent)
• "I have a surprise for you, but keep it under your hat until tomorrow." (talking to a friend)
• "I have some insider information about the stock market, but I need you to keep it under your hat and not share it with anyone else." (talking to a business partner)
• "I've been planning a surprise party for my husband's birthday, so please keep it under your hat and don't tell him." (talking to a family member)
• "I heard a rumor about our boss, but let's keep it under our hats and not spread it around the office." (talking to a colleague)
• "I know something that could change the outcome of the election, but I've been advised to keep it under my hat until the right time." (talking to a journalist)