We use this expression to say that we are not impressed or surprised by something.
You can use this phrase in ………… language.
Spoken
Written
Informal
Example 1
A: Where’s Jane? Have you seen her?
B: She could be on the moon for all I care!
Example 2
A: What shall we do with the new leaflets?
B: Burn them for all I care. They’re nothing to do with me.
