Interjection
now you tell me
Used to indicate that the person telling them should have told the speaker earlier, typically with annoyance.
Well, Art is Art, isn't it? Still, on the other hand, water is water. And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now you tell me what you know. Groucho Marx