look up any word, like smh:

1 definition by crazypill

 
1.
Common Irish compliment.

Means "well done" or "good on ya".

Sentences that use it often go "A'boy the *person's name*!"
Brian: "I just got an A in Maths!"

James: "A'boy Brian!!!" or "A'boy the Brian!"
by crazypill February 07, 2010