Definition of "attaboy" []

• Informal Used to show encouragement or approval to a boy or man: Attaboy! That's the way to hit a home run! (interjection)

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.

• "Its researchers recently received an attaboy from the author of Zlob buried in the coding of a recent variant of the Trojan."
• "Lofty words and "attaboy" - toasts and pats on the back mean absolutely nothing."
• "The watch also sends reminders when users haven't run in awhile and gives "attaboy" motivational messages when they are hitting the pavement."