Demand for agreement, implying the other party should proceed as told, whether they agree to terms or not.
There's a few things I Want you to take care for me. What should I call them; problems! I Want you to make them disappear, if you get what I mean, capice!
Asking for agreement, understanding, belief. Answered with itself. Often used in italian mafia-type settings to emphasize understanding.
Frank: "If you dont shutup, im going to bust your frickin head open with a baseball bat, capice?!"