Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Psychology, psychiatrykleptomaniaklep‧to‧ma‧ni‧a /ˌkleptəˈmeɪniə/ noun [uncountable] MPa mental illness in which you have a desire to steal thingsOrigin kleptomania (1800-1900) Greek kleptes “thief” + English mania ldoceonline.com