(Irish) a general excl. of amazement, disbelief.
|Ballygullion 123: ‘Boys-a-boys,’ sez James Dougherty, ‘the works av man is wonderful.’.|
|(con. 1850–60s) Malachi Horan Remembers 30: Every townland had on everything a different way of going and a different way of living. — Boys-o-boys — boys-o-boys.|
|At Night All Cats are Grey 156: Boys-a-boys, thon’s a queer looking yoke.|
|Confessions of Proinsias O’Toole 98: Boys-a-boys! That’s one quare shooter, lads.|
|O’Byrne Files: Dublin Sl. Dict. [Internet] Boys o boys phr. Grunted sigh used to punctuate speech as an expression of tiredness.|