过街老鼠

guò jiē lǎo shǔ

sb or sth detested by all

target of scorn; anathema; cf. 老鼠過街，人人喊打|老鼠过街，人人喊打[lao3 shu3 guo4 jie1 , ren2 ren2 han3 da3]

过

guò

to cross

街

jiē

street

老

lǎo

prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity

鼠

shǔ

(bound form) rat; mouse