雞蛋碰石頭

1. • lit. an egg colliding with a rock (idiom)
2. • fig. to attack sb stronger than oneself
3. • to overrate one's abilities

Character by character

• 雞(jī)fowl
• 蛋(dàn)egg
• 碰(pèng)touch
• 石(shí)surname Shi
• 頭(tou)suffix for nouns