stuff head with
stuff (one's) head with (something)
To cause one to believe, think about, or be preoccupied with some idea or notion something. He believe the education system is stuffing kids with nonsense that they'll never need in the real world. I wish you wouldn't stuff Tommy's head with those ridiculous fairy tales. His imagination is wild enough as it is.
stuff someone's head with something
to fill someone's brain with certain kinds of thoughts. Who has been stuffing your head with that nonsense? Tex thought that the government was stuffing peoples' heads with all sorts of propaganda.