DNR in medical terminology typically refers to do not rescucitate. However, DNR text is one you send to your side chick/dude which stands for "do not respond" it is sent prior to a text you want to send but fear a response may cause problems with your girlfriend/boyfriend.
DNR. I wish I was gently batting your knockers right now however I will have to wait til the gf isn't around...
DNR - Department of SnatchAllYourResources. A department that you would think should be protecting our natural resources. In reality it is an arm of the governer that is more worried about promoting tourism and granting permits to greedy evil doers who profit from exploiting resources that belong to all of us.
The water tables are dropping because the DNR keeps approving permits for high capacity wells.