Have/get something down Definition 1 of 3Pro Tip 1/3Practice Required This phrase often implies that achieving full understanding took effort or repetition. You'll have the safety rules down after a few more drills. Pro Tip 2/3Complete Knowledge Use 'have/get something down' when you've thoroughly learned something, leaving no room for doubt. I finally got all the steps of the dance down. Pro Tip 3/3Confidence Expression This phrase expresses your confidence in your knowledge or skill. Don't worry about the quiz; I have the formulas down.