As a way to explain you yourself like to tell if your mad sad or happy or Nigga as a black guy or girl for a white guy or girl to say nigga a black guy or girl has to give them a N-word pass
What you call your homie after he had your back and helped you fix something bad you have caused or inflicted on someone, something, or even yourself
Examples: Bad grades, Drug addiction, Bullying someone, and etc.
You: Hey dude, thanks for helping me with my grades and being my nigganapkin Friend: No problem, I'm proud to be your nigga napkin