。
My father even brought up my friends.
Literal
Father [topic-は] my friends [about-について] [even-まで] mouth [to-に] put-out.
口に出す means 'to say out loud, to bring up' — literally 'to put into one's mouth.' ~まで (even) emphasizes that the father went as far as talking about the speaker's friends, implying overstepping.