act in collusion with wallow together in the mire in league with be congenial to each other wallow in the mire with sb
It´seems to me that he grew more erect as the fraternal hilarity increased.
我觉得随着沆瀣一气的欢闹的高涨,他也变得越发端庄了。
—— 辞典例句Those people collaborated in evildoing.
那些人沆瀣一气做坏事。
—— 给力词典精选The saloonkeeper stood in with all the big politics men in the district.
酒店掌柜是和当地所有的大政客沆瀣一气的。
—— 给力词典精选