大おお儲もうけ

noun, noun or participle which takes 'suru'

large profit; a killing

Refers to making a very large profit, often unexpectedly or from a single deal. Can be used as a noun or with する to mean 'to make a killing'.

• 株かぶで大おお儲もうけした。

  I made a killing in stocks.

• あの店みせは観かん光こう客きゃくで大おお儲もうけしている。

  That shop is making a huge profit from tourists.