nm 

not much. shortened version of not much. used on msn, etc for lazy people who cant be arsed to type the full word.

"hey billy wat up?"
"nm, u?"

nm by hello-ther-sailor!! November 26, 2006

nm 

Nautical Mile.
A unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude.

1 NM = 1.15078 MI

Pilot 1:How much further until our waypoint?
Pilot 2:About 16 nm

nm by green-poo December 31, 2009

NM 

A useless 2 letters which can mean one of he following two things when somebody asks whats up?

Not much.

Or the more common one of..

I cant be bothered to tell you, so no much.

It is a real conversation maker which could lead you no to the same conversation you always have.

Person A: Hi
Person B: Hi
Person A: Whats up
Person B: NM, you?
Person A: NM
Person B: Cool

NM by Ryan Riggs October 9, 2007

nm 

in the subject line of an e-mail, (nm) stands for no message. that is, the sender is so to the point that he needed only the subject line to express himself, so there's no need for the reader to open the (blank) message.

Subejct: Your house is on fire. Run for cover. (nm)

nm by Zen06 June 28, 2005

nm 

not much

what's going on?
nm

nm by kevely and sam March 8, 2003

NM 

A way to kill an unwanted conversation which usually occurs with someone you dont like!

NM=Nothing Much

Guy1: Hey Man Whats Up?

Guy2: NM

Guy1: Oh i see how it is Asshole! way to kill the convo!

NM by B_RAD69 May 26, 2009

nm 

This is one of the many annoying "chatspeaks" that illiterate dumbasses use because they can't take the time to write it out.

If not much is going on, can't you take time out of your boring life to type "not much"?

Bob:So, whats up?
Bill: nm
Tiek: Can't you take the time to type out "not much"?

nm by Tiek October 30, 2004