out with (someone or something)
1. An exhortation for someone or something to be expelled or removed from some place. You kids have spent enough time in front of that TV—out with you! By the power of God, out with these vile spirits! Leave this poor woman's body at once!
2. Say what you are thinking or reveal some information, especially after hesitation or delay. Used as an imperative. OK, I know you're upset with me for some reason. Out with it! Out with your news already! What is it?