坊ぼう主ず丸まる儲もうけ

expression

a monk's earnings are pure profit

Proverb meaning that since monks traditionally have no capital or expenses, any income is pure profit. Used figuratively for businesses or situations with minimal overhead.

• 坊ぼう主ず丸まる儲もうけというが、実じっ際さいにはお寺てらの維い持じにもお金かねがかかる。

  They say a monk's earnings are pure profit, but in reality maintaining a temple costs money too.

• この商しょう売ばいは原げん価かがほとんどかからないから、坊ぼう主ず丸まる儲もうけみたいなものだ。

  This business has almost no cost of goods, so it's like a monk's pure profit.