According to corkslang.com, caffler is a noun meaning a young rogue, an impish, saucy young fellow, an impertinent
boy. It is used around
Cork city in
Ireland.
It probably derived from French 'caviller'.
That fellow is a caffler.
' . . . . I rocked that
little caffler in his cradle.' (
Murphy)
'
Young cafflers would come after me along the Mardyke calling me names.' (O'Mahony)