Slang 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). (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "kiddo" in a sentence
"Working on breaking this cycle ASAP as my kiddo is as stubborn as they come."
"I was wondering, just last night at 3am, if my kiddo is ever going to do the same."
"People have DIRTY minds whenever they see me whip it out and no kiddo is around to put it into context. haha"