Entry 2 senses · 2 variants Webster, 1913 Kiddy /kĭd'-ē/ · Kid·dy · IPA /[ˈkʰɪɾi]/ v. t. n. 01 v. t. To deceive; to outwit; to hoax. 1. To deceive; to outwit; to hoax.[Slang] 02 n. A young fellow; formerly, a low thief. 1. A young fellow; formerly, a low thief.[Slang, Eng.]