The Irish version of what Americans call "
bad boys," usually good-looking,
virile young men who have a (real or imaginary) way with the ladies, and try to use their charm and boldness to get around all
four bases in as short a time as possible.
"You watch your self around that Michael
O'Shea. He's quite a bold boy, you know. He'll try to have your
knickers off by the time your
starters are served."