Nmslの例文や意味・使い方に関するQ&A

A: What's the context? I don't recognize it but I found two examples used in China.

The abbreviation of "Never Mind the Scandal and Libel".(First time used by a famous Chinese rapper Sun Dog in his famous song "Showtime").

and

This is a chinese slang, which is the initials for “Ni Ma Si Le” which means your mom’s dead. Often used in curses for online/real life arguments.

A: You’re nothing but a keyboard fighter, suck it. 
B: A, NMSL.

Taken from Urban Dictionary.
May not be accurate.