mangy \man"gy\, a. [Compar. {mangier}; superl. {mangiest}.] [F. mang['e], p. p. of manger to eat. See {Manger}.] 1. Infected with the mange; scabby. [1913 Webster] 2. Shabby; worn-out; seedy; run-down; squalid; as, a mangy old coat; a mangy tavern. [PJC]