easy pickins
A person so nice they’ll let you borrow their lunch money and forget to ask for it back.
My friend is easy pickins. I borrowed her $10 and still haven’t paid her back.
That teacher is easy pickins. I asked her for a grade and she gave me an A without even asking for anything.
My mom is easy pickins. She let me borrow her car and now I’m driving it like it’s mine.