K0055500 (kĭd′ō)n.pl.kid·dosSlang1. a. A child.b. A young person.2. Pal. Used as a term of familiar address: "I said to the girl, rather snootily: 'I have a trade, kiddo. I'm a detective'"(Ross Macdonald).
kiddo
(ˈkɪdəʊ) n, pl-dosor-doesan affectionate form of address used to a younger person
kid•do
(ˈkɪd oʊ)
n., pl. -dos, -does.Informal. (used as a familiar form of address.) [1880–85; kid1 + -o]Translationsmioche