in the cahoots
秘密合作或者串通一气以达到共同的目的
口语·表达秘密合作或共谋
英文释义
to be in a secret partnership or conspiracy with someone
例句
The two companies were in cahoots to fix the prices and cheat customers.
典故来源
源自法语'cahute'（小屋），指在小屋里密谋，后引申为秘密勾结。