雷公打豆腐，拣软的欺 (雷公打豆腐，揀軟的欺) léigōng dǎ dòufu, jiǎn ruǎn de qī

léigōng dǎ dòufu, jiǎn ruǎn de qī phrase the God of Thunder strikes bean curd, a bully picks the weakest person; to pick on an easy target
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '雷公打豆腐，揀軟的欺')