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Welcome to English in a Minute!

This is a worm. When we fish, we can bring cans of worms to use as bait. So, does opening a can of worms just mean we're getting ready to fish?

A Can of Worms 极为棘手的问题

Dan: Did you look over my edits to the proposal?

Anna: I did. You put in way too many commas, again.

Dan: No! I added commas where they are needed. It's called the Oxford comma.

Anna: Let's not open a can of worms, Dan. Our deadline is tonight. Look, you put in all the commas as you want.

To open a can of worms means to try to deal with or discuss a problem or situation, only to face even more problems. Anna chooses not to open a can of worms by debating comma rules with Dan.

And that’s English in a Minute.