The phrase "someone over the head" means to explain or present something in a way that is hard for the person to understand or accept.
Sentences with «someone over the head»
You can easily get in over your head in such a short while. (moneywehave.com)
These policies guarantee food on the table and a roof over the heads of the family. (lifeinsurancehub.org)
The gags in the hotel room over his medications when the doctor is called is very good, and possibly goes way over the head of younger audiences. (timeout.com)