祝我蛇蝎心肠刀枪不入百毒
[zhù wŏ shé xiē xīn cháng dāo qiāng bù rù băi dú]
'May I have a heart of scorpion venom, invincible against weapons and impervious to all poison.' It is somewhat hyperbolic and self-deprecating; often said jokingly about someone needing to be tough and unfeeling toward difficulties and betrayal.