what's that got to do with the price of cheese in China 

The phrase is used to mean “How is this relevant to the conversation?”, especially if a person seems to be actively avoiding the topic being discussed.

Me: Hey, do you have that $20 bucks you owe me.

Him: Hey, have you seen the movie Hot Tub Time Machine yet?.

Me: What's that got to do with the price of cheese in China?

what's that got to do with the price of cheese in China by Hotlava3 April 6, 2010

I’ve got cheese to slice 

preoccupied with another task.

“I’ll see you later Tom Hanks, I’ve got cheese to slice.”

I’ve got cheese to slice by CherishedQuench933 December 25, 2022

I’ve got cheese to slice 

Really busy with things to do, like Christmas dinner.

We called mom in when she was busy cooking, then she said “well, I’ve got cheese to slice” and went back to the kitchen.

I’ve got cheese to slice by CherishedQuench933 December 25, 2022

Swiss cheese with no bread to land on 

To be beyond all hope. At the end of you rope with nowhere left to go. A desperate feeling in a hopeless situation.

After John's family was killed and he lost his house, he felt like swiss cheese with no bread to land on.

Swiss cheese with no bread to land on by TheGrammerNinja July 19, 2018