The idiom "letting the cat out of the bag," meaning to reveal a secret, is often misspelled as "letting the cat out bag." The correct spelling includes the word "of," which is pronounced /əv/ in IPA phonetic transcription. The mistake likely stems from speakers hearing the word "of" as a reduced /əv/ sound, and omitting it in writing. However, the correct spelling is important to maintain the meaning and clarity of the phrase.
Letting the cat out of the bag is an idiom that refers to the act of disclosing or revealing information that was intended to be kept secret or hidden. This phrase is often used when someone unintentionally or mistakenly reveals confidential details, thereby spoiling a surprise, plan, or secret.
The origin of this expression can be traced back to old marketplaces where traders would sell piglets. Unscrupulous sellers would substitute a cat for a piglet, putting it in a bag. Customers who were not observant or careful would only discover the deception when they returned home and "let the cat out of the bag." This action would reveal the fraud, hence exposing the seller's secret.
Nowadays, this idiom is used figuratively in a variety of contexts. It conveys the idea that unwilling or accidental disclosure can have significant consequences, often leading to negative outcomes. Whether it pertains to confidential information in a workplace, a surprise party being spoiled, or a secret being inadvertently revealed, letting the cat out of the bag implies that the cat (representing the truth or hidden information) was unexpectedly released from its confinement, leading to an undesirable outcome.
Overall, "letting the cat out of the bag" is a commonly used expression conveying the inadvertent revelation of secret or confidential information, often resulting in negative repercussions.