gōng​gòng​cè​suǒ​rēng​zhuān​tou

[xiehouyu] to provoke public anger

公共厕所扔砖头 公共廁所扔磚頭 gōng​gòng​cè​suǒ​rēng​zhuān​tou
[xiehouyu] to provoke public anger
A two-part allegorical saying (歇后语 xiē​hòu​yǔ) meaning to provoke public outrage; based on a pun where the word for "manure" ( fèn) sounds like the word for "indignation" ( fèn); throwing a brick into a public toilet splashes everyone with waste