What part of "(a quote)" does (someone) not understand?

Use this phrase when:

  1. you tell a person to do something
  2. they don't do it
  3. you're annoyed with them

Here's another example:

A: Can I borrow your car?

B: No.

A: Aw, come on! Please?

B: What part of "no" do you not understand?

This phrase appears in these lessons: