Let the cat out of the bag

每週俚語後面的小故事~

"Let the cat out of the bag" 背後的小故事對小編來說有一點狸貓換太子的感覺 (單純是 "換" 的這個部分)。有興趣的同學可以閱讀下面的故事。

Now taken to mean that a secret or spoiler has been revealed, the phrase originated in market stall deceptions played on unsuspecting buyers in medieval days. Thinking they were purchasing a suckling piglet, the buyer would be distracted by the vendor while an associate substituted the piglet for a cat and bagged it up ready to be carried home. The deception would only be revealed when the buyer arrived home and let a ‘cat out of the bag’.