learn you

A sentence fragment that is often believed to be grammatically incorrect, but is actually completely correct. The word learn is actually rooted in the Old English verb læran, meaning "to teach", and can be used transitively in this manner, e.g. "I'm going to learn you a lesson."
> "I'm going to learn you a lesson."
> "She learned him how to skate."
> "He learned him how to fish."