もういっぺんMeanings1expressiononce more; againusually written using kana aloneCasual Kansai-dialect expression equivalent to もう一度. Used in informal speech to ask for repetition or to do something again.See also: もう一度 · もっぺんもういっぺん言ゆうてみて。Say it one more time.もういっぺんだけチャンスをくれへん?Can you give me just one more chance?