get through one's head
verb1
Idiomatic To come to terms with a fact, a state of affairs, etc. that one was previously unable or refusing to accept.
- Pearl nodded obediently, pretending understanding. "If Jack can get his back off the bed in the morning, and get it through his thick head that he has to do his share of mucking out and grooming, not just riding the gee-gees, he ́ll be laughing.[…]"2017, India Millar, Pearl´s Story:
- He still couldn't get through his head that she was interested in him. Outside of Gloria Williams, the little girl next door who suddenly moved away, he couldn't remember anyone who paid that much attention to him.2000, Terry Larson, House of Parrotise: