我百毒不侵蛇蝎心肠
[wŏ băi dú bù qīn shé xiē xīn cháng]
The name implies that: “Nothing can harm me anymore as I’ve got a hardened, cruel heart like a snake and a scorpion.” It portrays someone who is indifferent to all kinds of criticisms or negative remarks coming from around, almost impervious. One might choose this nickname because they believe or want to present themselves as resilient and emotionally detached from others, having possibly experienced numerous difficulties in life making one seemingly tougher mentally.