What's that got to do with the price of cheese

What's that got to do with the price of cheese?

A rhetorical question calling attention to a non-sequitur or irrelevant statement or suggestion made by another person. Primarily heard in UK. Yes, I agree that health care is an important issue, but what's that got to do with the price of cheese? We're discussing tax incentives for local businesses—not exactly a related topic!

Common Names:

Name	Pronounced	Usage
Carey	['kɛəri]
Kattalin	-	Basque
Brijesh	-	Indian, Hindi, Gujarati, Marathi
Owen (2)	-	Irish
Pedr	-	Welsh
Balfour	-	English (Rare)