A young rogue, an impish, saucy young fellow, an impertinent boy.
That fellow is a caffler.
That fellow is a rogue, he is saucy, impertinent.
Probably French 'Caviller'. And note 'Caffler - from Caviller' - a contemptible little fellow who gives saucy, cheek, foolish talk. (Joyce) See ' . . . . I rocked that little caffler in his cradle.' (Murphy) See 'Young cafflers would come after me along the Mardyke calling me names.' (O'Mahony)