Can of Worms
Meaning
A situation or issue that, once opened or addressed, creates many additional complicated problems or difficulties.
Origin
The imagery of a "can of worms" directly relates to fishing bait. When a fisherman opens a can full of live worms, they don't just stay neatly inside; they wriggle, intertwine, and often try to escape, creating a messy and complicated situation that's hard to contain. This vivid, tangible experience of dealing with a writhing mass of creatures became a perfect metaphor for inadvertently unleashing a host of interconnected problems. The phrase gained significant traction in American English during the 20th century, cementing its place as a popular idiom for a situation best left undisturbed.
Examples
- Bringing up the company's new policy on remote work during the team meeting would be opening a real can of worms.
- The detective realized that investigating the seemingly minor theft had become a can of worms, uncovering a much larger criminal enterprise.