G'day Mark,Of course, that is Cockney - approximating "Oh, a mouth so large, God, Lord, God, love me" - Well, it is according to the Oxford Dictionary equating "cor" with "God" ... But I always took it as (imperfect) rhyming slang for "Lord" (Lord ... Lor' ... cor ...) but then that makes the line "Oh, a mouth so large, Lord, Lord, Lord, love me"...
Regard(les)s,
Bob Bolton