When you’ve seen, heard, etc. one, you’ve seen, heard, etc. them all

Pro Tip 1/3

Cliche Warning

Using this phrase can suggest you think something is unoriginal or overdone.

Another superhero movie? When you've seen one, you've seen them all.

Pro Tip 2/3

Slight Disparagement

It often implies a mild criticism or lack of enthusiasm about the things being described.

This town's pubs are all alike. When you’ve visited one, you’ve visited them all.

Pro Tip 3/3

Not for Uniqueness

Avoid using this phrase when referring to things appreciated for their uniqueness or individuality.

I like handcrafted items, so I don't agree that when you've seen one, you've seen them all.