雷公打豆腐 léigōng dǎ dòufu

léigōng dǎ dòufu phrase the God of Thunder strikes bean curd; to bully the weakest person; to pick on an easy target
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '雷公打豆腐')

Also contained in

雷公打豆腐,拣软的欺