for goodness' sake; I beg of you
Used as an earnest plea, often in the set phrase 後生だから (literally 'for the sake of the afterlife'). It carries a desperate or imploring tone, similar to 'for the love of God' or 'I implore you'.
See also: 後生だから
後生だから、もう一度だけチャンスをください。
For goodness' sake, please give me just one more chance.
People who believe in the afterlife try to accumulate good deeds.
後生です、どうかお助けください。
I beg of you, please help me.
with utmost devotion; take great care of
once in a lifetime; extremely important (request)
Standard kanji spelling for both the Buddhist afterlife sense and the pleading interjection.
From 後 (after) and 生 (life), literally 'after-life'. The pleading sense derives from the Buddhist notion of staking one's afterlife on a request, as in the phrase 後生だから.