Niggas with OCD, N-W-O
Niggaz with OCD= NWO
as opposed to
Niggaz with Attitude= NWA
NWO also stands, more famously, for New World Order, the shadowy group of people who try to control the world.
People with Obsessive-Compulsive Disorder (OCD) feel the need to retain order with certain patterns and repetitions in order to avoid bad situations, chaos, etc.
New World Order (NWO) is the conspiracy theory in which an elite group is working towards ruling the world.
So Childish provides an interesting link between the two entities with a double entendre. Niggas with OCD just want order in their lives like NWO just wants order in the world.
N.W.A, of course, is the rap group straight outta Compton, consisting of: DJ Yella, Dr. Dre, Eazy-E, Ice Cube, and MC Ren.
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