What does expression a list of laundry mean?

"A list of laundry" is a figurative expression. It doesn't literally mean a list of items to be washed. It usually means:

A list of tasks, problems, or issues that need to be addressed or dealt with.

The expression is used because laundry is often seen as a tedious and long chore, just like dealing with a lot of tasks can be.

Here are some examples:

* "I have a whole laundry list of things to do before the meeting."

* "The new CEO has a laundry list of problems to solve."

* "After the party, I had a laundry list of things to clean up."

So, when someone says they have a laundry list, it means they have a lot to do.