slush fund

slush-fund的词性：
n.（名词）

1. A fund raised for undesignated purposes, especially:
基金：出于不特定的目的而积累的基金，尤指：

2. A fund raised by a group for corrupt practices, such as bribery or graft.
收买基金，贿赂基金：一个组织出于腐败活动（如贿赂或贪污）而积累的基金

3. A fund used by a group, as for entertainment.
招待费，特支费：一个组织（为了娱乐而）积累的基金

4. Money formerly raised by the sale of garbage from a warship to buy small items of luxury for the crew.
福利金：以前战舰通过出售垃圾积累的基金，用于为船员购买小件奢移品