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
Elena	[ə'leinə]
Tammie	['tæmi]
Cierra	see-ER-ə	English (Modern)
Iosif	ee-O-seef (Russian), YO-seef (Romanian)	Russian, Romanian, Greek
Nikodem	nee-KAW-dem	Polish
Karly	KAHR-lee	English (Modern)