A donkey for a trade
A donkey for a trade means you ended up with something way better than you thought. It's like getting a pizza for lunch instead of a salad, and the pizza has extra cheese, and it's also free.
Your best friend said, 'You got a donkey for a trade.' after you told him you got a scholarship to a fancy school.
Your mom said, 'You got a donkey for a trade.' because you dated a famous singer.
Your dad said, 'You got a donkey for a trade.' because you got a scholarship to a fancy school.