Phrases Phrases for Problem-Solving

That's a can of worms.

C2

Meaning

That's a complex and potentially troublesome issue.

Example sentences

John: 'We should review the legacy code.'

Alice: 'That's a can of worms. It's incredibly complex and poorly documented.'

John: 'That's a can of worms. It involves multiple international partners and regulations.'

Alice: 'Let's address the supply chain issues.'