make a killing

US /meɪk ə ˈkɪlɪŋ/

UK /meɪk ə ˈkɪlɪŋ/

faire fortune, faire un carton

to make a lot of money very quickly and easily

•

He made a killing in the stock market during the tech boom.

Il a fait fortune sur le marché boursier pendant le boom technologique.

•

They're hoping to make a killing by selling their startup.

Ils espèrent faire fortune en vendant leur startup.