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Yomi
いっしょうのおねがい
Rōmaji
isshou no onegai
Type
idiom
Meaning
The once-in-a-lifetime favour one asks
Additional Info
It’s short for 一生に一度のお願い. Despite its literal sense, people usually use this phrase several times when asking a very big favour of someone.
Example
お金を貸してくれないか？たのむ、一生のお願いだ！
Could you lend me some money? Please, this is “the once-in-a-lifetime” favour I ask!
