Can You Use Good Riddance?

You say 'good riddance' to indicate that you are pleased that someone has left or that something has gone. He's gone back to Cleveland in a huff, and good riddance.

Is it rude to say good riddance?

From Longman Dictionary of Contemporary English good riddance (to somebody)spoken a rude way of saying you are glad someone has left She was awful.

What does it mean when someone says you good riddance?

—used to say that one is glad that someone is leaving or that something has gone Winter is finally over, and I say good riddance!