tell off verb4 •To rebuke, to reprimand, or to admonish, often in a harsh, angry, direct way.Joel's boss told him off for being late again. •To number off (a group of soldiers); to divide up (soldiers) in this way.To equalize a battalion is to tell off a certain number of companies, usually eight, in such a manner that the several component parts shall consist of the same number of men. — 1885 •To count off (numbers, members of a sequence etc.); to enumerate.The Recruit looked thoughtful and told off the days on his fingers. — 1903 •To assign (someone) to a particular task, duty etc.; to depute, to allocate.The provisions were packed over night and sent down by boat, in charge of the steward of the Gtdnare or some person specially told off for the purpose. — 1887 formstold off · telling off · tells off