Learn Everyday English Idioms- A Can of Worms

A Can of Worms: meaning and how to use this English idiom.

If you’ve ever found yourself in a situation where trying to solve one problem only leads to a whole lot of other problems, then you’ve probably opened a can of worms.

What Does A Can of Worms Mean?

This meaning of this English idiom is to describe a situation that seems simple on the surface but actually creates a lot of complications once you get into it. It’s often used when talking about tricky topics, sensitive issues, or problems that have unexpected consequences.

Imagine literally opening a can full of wriggling worms – once they’re out, it’s messy, chaotic, and difficult to put them all back. That’s the idea behind this English idiom.

How to Use A Can of Worms in Conversation

So, we’ve looked at the meaning of can of worms, but how can you use it in a conversation? Well, you’ll often hear this idiom in discussions about personal relationships, work, politics, and decision-making. It’s usually used as a warning to think carefully before diving into something that might cause more trouble than it’s worth.

Here are a few examples of how a can of worms might come up in everyday English:

1. In the Workplace
I thought asking for feedback on the project would be helpful, but it turned into a can of worms – everyone started arguing about what should change.

2. In Relationships
Bringing up my partner’s ex was a real can of worms. Now we’re having a whole conversation about trust that I wasn’t ready for.

3. Talking About Society
If the government changes the tax system, it could open a can of worms. There will be so many people affected in different ways.

Related Expressions

If you like this idiom, here are a few similar phrases that capture the same idea:

• To stir up a hornet’s nest – To cause a lot of trouble or provoke a strong reaction.

• To Pandora’s box – To do something that unleashes a series of uncontrollable problems.

• To bite off more than you can chew – To take on something that turns out to be too difficult or overwhelming.

So, next time you’re about to bring up a controversial topic or take on a task that seems straightforward but might spiral into chaos, ask yourself – am I about to open a can of worms? If the answer is yes, you might want to tread carefully!