Its just that our time has gotten to lazy to type nothing much, which is stupid because if your not doing anything you should be able to type "Nothing much".
Me;Why don't you just type nothing much you loser.
Commonly misinterpreted by users, the abbreviation can be harmful, even fatal.
'Well I do fucking mind you worthless shit! It’s my bling! Ima come around and cut your balls off and put them in your mouth!'
The previous was a common occurrence where Person B merely stated that he had not wasted much Person A's money, however, he got dead because he used the vague term, 'nm'.
Person 2: nm
Some people also use it as an abbreviation for "nevermind", but "nvm" is more popular.
Jill: nm u?
Jack: (starts talking about something)