Phrs. As 'when the shit hits the fan', it warns that severe consequences will be felt when the results of actions are discovered. Alternatively, in such phrases as "the shit will hit the fan when she discovers the truth". See 'when the shit hits the fan'.
SHIT HITS THE FAN
Meaning of SHIT HITS THE FAN in English
Slang English vocab. Английский сленговый словарь. 2012