1. attaboy - Noun
2. attaboy - Interjection
attaboy
(idiomatic, colloquial) Used to show encouragement or approval to a boy, man, or male animal.
Attaboy! That's the way to hit a home run!
attaboy (plural attaboys)
A cry of "attaboy"; an accolade.
Attaboy specializes in bespoke creations, so if you want a cocktail, you’re gonna have a fun little chat with the bartender and they’re gonna make you something just for you. Source: Internet
The Columbia Room was up against three cocktail powerhouses in the finals: Trick Dog in San Francisco, Attaboy in New York, and Anvil Bar and Refuge, both in Houston. Source: Internet