An abbreviation for "Niggers In Jail", which, of course, refers to every African American ever born.
"Look at that NIJ. Stealin' again."
by Moffit August 19, 2006
Hey Maddie did you hear about the N.I.J. that happened when Jessica and Kathy went to the mall and saw that hot guy in Hollister?
by About Life Now February 24, 2012