Entry 3 senses · 3 variants Webster, 1913 Rummy /rŭm'-ē/ · Rum·my · IPA /ˈɹʌmi/ a. n. a. 01 a. Of or pertaining to rum; characteristic of rum; as a rummy flavor. 1. Of or pertaining to rum; characteristic of rum; as a rummy flavor. 02 n. One who drinks rum; an habitually intemperate person. pl. Rummies 1. One who drinks rum; an habitually intemperate person.[Low] 03 a. Strange; odd. 1. Strange; odd.[Slang]