Chinese, named by Thai netizens after Wu Maos who spammed "nmsl" (Chinese: 你媽死了, i.e. your mother died) when they couldn't win an argument over Twitter.

Abbreviation for:

I DON’T GIVE A FUCK WHAT THE CDC SAYS YOU BE WEARING YOUR MASK

People yelling nmsl everywhere.

Nmslese is an offensive name used by some people in Hongkong and Taiwan to insult Chinese.

First, when a few impolitic mainland Chinese and Hongkong people argue for some political ideas on twitter, mainland Chinese use nmsl (an abbreviation of your mother shall die) and Hongkong people use “diu nei lou mou (you are a motherfucker, dllm)" to curse each other.

Then some Hongkong people and Taiwanese use "nmslese" to make fun of the impolitic mainland Chinese. Soon after, they enlarge the scope of the word and use "nmslese" to insult all patriotic Chinese when debating with politic and rational Chinese.