The people, or anything pertaining to those of South Asian/Middle Eastern Decent.
Because of the many countries that litter South Asia and the Middle East, the term 'brown' is used in teenage circles as a blanket term. (One thing in common of people of these origin is their brownish-reddish-tan skin.)
Not a racial slur. (in most cases)
"That kid isn't spanish--he's BROWN."
"I'm going to the mall with all my brown friends."
The term used to define the black and funny characteristics of people named Nick. They are usually very average people and answer to the call of "N-bar" or "mmmmrraaaaa"
That was a funny joke nicker