N-UNCOUNT 阿堵物；孔方兄；金钱收益；（尤指）不义之财 People sometimes refer to money or profit as lucre, especially when they think that it has been obtained by dishonest means. 阿堵物；孔方兄；金钱收益；（尤指）不义之财 [humorous, or old-fashioned, disapproval]
...so they can feel less guilty about their piles of filthy lucre.