沆瀣一氣

to act in collusion (idiom); in cahoots with / villains will look after one another

a ferry / fog / flowing

(literary) evening mist

mist / vapor

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

at one go / at a stretch / for a period of time / forming a gang

gas / air / smell / weather / to make angry / to annoy / to get angry / vital energy / qi

gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi