Hola, I am sorry, but I cannot speak Spanish. :(
말야 is wrong spelling of '말이야'.
'말이야' is used to get attention from the listener. It is used in some different forms such as
'말이죠', '말이지' or '말인데'.
e.g. "그 사람 말이야." "내가 말이야." "요즘 말이야."
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