过街老鼠 (過街老鼠) guò jiē lǎoshǔ

guò jiē lǎoshǔ set phrase 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
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '過街老鼠')