A Mench
A Mench is a Yiddish word for someone so nice they'd let you borrow their last sock and still say you're the best friend they ever had.
My mom is a Mench. She let me eat her lunch and still said I was the best kid in the world.
My uncle is a Mench. He gave me his old phone and still said I was the coolest kid he ever knew.
My teacher is a Mench. She let me copy her homework and still said I was the smartest student in the class.