烈酒灼唇烈酒伤喉
[liè jiŭ zhuó chún liè jiŭ shāng hóu]
'Strong liquor burns the lips and harms the throat', which describes how certain substances (in this case, hard liquor) can harm one's physical body. Metaphorically speaking, the internet handle might imply bitter or harmful things can bring temporary pleasure but eventually leave one hurt. It may refer to emotional scars.