N.W.H. is Niggas With Hats, the three man rap group consisting of Tone Def, Tasty Taste, and Ice Cold. Check out their crazy antics in the film "Fear Of A Black Hat."
Tasty Taste: "See when I say N.W.H., 'Niggas With Hats' that's just between the group. To all y'all motherfuckas, it's 'Naynays With Hats."