"N" derived from "Nicotine";
A word created by Shinosuke, me.
<Shinosuke> Shit, I feel so weak..
<Person1> Why? What happened?
<Shinosuke> My body is lacking of Vitamin N... I'm all shaky..
<Person1> Huh? Vitamin N?
<Shinosuke> N! For Nicotine!!
* Shinosuke goes away from his computer and goes out to grab a pack of cigs.