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
Bragg	[bræg]
Shifra	-	Hebrew, Biblical Hebrew
Ptolemais	-	Ancient Greek
Lorna	LAWR-nə	English
Teo	TE-o	Italian, Spanish, Croatian
Alpertti	AHL-pert-tee	Finnish