蝦兵蟹將

1. • shrimp soldiers and crab generals (in mythology or popular fiction, the army of the Dragon King of the Eastern Sea)
2. • useless troops (idiom)

Character by character

• 蝦(xiā)shrimp
• 兵(bīng)soldiers
• 蟹(xiè)crab
• 將(jiàng)a general