BNTR means: When used, use uppercase NOUN 1. Unsuppressed drunken man. 2. One man almost never awakens when he is being observed. 3. One man who drinks beer all by himself. When used, VERB is lowercase 1. A terrible trick on an innocent person. 2. For several days, one may vomit or pee in their room without realizing or cleaning up after it. N.B. It may also be used in certain circles to indicate all forms of stupid behavior. (in Community Dictionary, added by Jaylee Skinner)