Examples:

• Sarah accidentally let the cat out of the bag about the surprise party for Tom.
• Don't let the cat out of the bag, or the whole plan will be ruined.
• John's face turned red when he realized he had let the cat out of the bag about the surprise gift.
• We were trying to keep the news a secret, but someone let the cat out of the bag.
• It was supposed to be a surprise, but she let the cat out of the bag when she mentioned the travel itinerary.
• I can't believe you let the cat out of the bag about our engagement before we had a chance to tell our families.
• Keeping secrets can be challenging; eventually, someone might let the cat out of the bag.
• The company is planning a big announcement, but no one is allowed to let the cat out of the bag until the official press release.
• Jane was so excited about the promotion that she accidentally let the cat out of the bag during lunch.
• We had to reschedule the surprise party because someone let the cat out of the bag.
• It was a secret project, but unfortunately, leaks within the organization let the cat out of the bag.
• The detective worked tirelessly to solve the case, determined not to let the cat out of the bag until they had enough evidence.
• You should have seen the look on her face when she realized she had let the cat out of the bag about the surprise visit.
• Keeping the surprise a secret was challenging, but we managed not to let the cat out of the bag until the very last moment.
• The team was instructed not to let the cat out of the bag about the new product until the official launch.
• He was sworn to secrecy, but the excitement got the better of him, and he let the cat out of the bag.
• If you accidentally let the cat out of the bag, it's essential to take responsibility and apologize.
• The press conference was carefully planned to avoid anyone letting the cat out of the bag prematurely.
• They decided to let the cat out of the bag about their relationship after keeping it a secret for months.
• Keeping a surprise can be challenging, but it's important not to let the cat out of the bag until the right moment.