我愿溺于深海然后消失不见
[wŏ yuàn nì yú shēn hăi rán hòu xiāo shī bù jiàn]
'I wish to drown myself in the deep sea, then vanish into thin air.' This phrase depicts feelings of despair and depression, with strong wishes for escaping from reality or hiding from certain circumstances or events in one's life. This kind of nickname might hint at negative emotional states.