get through one's head

get (something) through (someone's) head

To make someone or oneself acknowledge, accept, or understand something. Look, just get it through your head: we're moving, and there's nothing that's going to change that now. I don't know how else to get it through her head that I want to break up.See also: get, head, through

get through one's head

Understand, believe, or be convinced. For example, Bill cannot get it through his head that John is moving out. See also: get, head, through