DICT.TW Dictionary Taiwan

 Tar·tar n.
 1.  A native or inhabitant of Tartary in Asia; a member of any one of numerous tribes, chiefly Moslem, of Turkish origin, inhabiting the Russian Europe; -- written also, more correctly but less usually, Tatar.
 2. A person of a keen, irritable temper.
 To catch a tartar, to lay hold of, or encounter, a person who proves too strong for the assailant. [Colloq.]