瞎貓碰上死耗子

1. • a blind cat finds a dead mouse (idiom)
2. • blind luck

Character by character

• 瞎(xiā)blind
• 貓(māo)cat
• 碰(pèng)touch
• 上(shàng)up
• 死(sǐ)die
• 耗(hào)waste
• 子(zi)noun suffix, as in 椅子 yǐzi "chair"