How does Luigi know Waluigi?

well of corse they have Mario party's together so why wouldn't the two know each other you prick

u prick yourself! why the hell do they have Mario partys together

Leave them to their petty arguments. Luigi knows Waluigi because Mario and Wario are rivals. Mario and Luigi are brothers, as are Wario and Waluigi.

answerwaluigi is lugis dad dummbos