look up any word, like ratchet:
 
1.
Something that kicks ass or is tight, cool, chill, rocks, ect.
JJ: Damn nigga did you see Kyle do that back flip?

Brandon: Yeah man that was the niggaest shit I ever saw!
by Christayy May 04, 2009
 
2.
when some one is the niggaest, they are more gangsta than anyone other.
see him, hes the niggaest out of all of them
by jf111 April 25, 2011