lucre 成语
filthy lucre
money, dollars Filthy lucre - that's what people want - cash, moola, lettuce.
filthy lucre|filthy|lucre
n.,
informal Money, especially when thought of as bad or shameful.
When the rich gambler tried to make Sarah marry him, she said, "Keep your filthy lucre
I shall marry the man I love." 
Sometimes used in a joking way.
"Come and let's get rid of some filthy lucre."