cahoots
noun [ plural ] informal uk/kəˈhuːts/ us/kəˈhuːts/
in cahoots (with) 结伙，勾结;沆瀣一气
acting together with others for an illegal or dishonest purpose
A banker and a government minister were in cahoots over a property deal. 一名银行家和一名政府部长在一桩房产交易上相互勾结。
It's reckoned that someone in the government was in cahoots with the assassin. 人们认为政府中有人与杀手相互勾结。