Nigga
A ignorant person. Sometimes used by anyone, not just black people, as a slang name for your friend.

Could be used as derogatory name for a black person. Slang for nigger. Sometimes used as a racial slur. Black people might get offended when this is said because of past slavery and racism issues. It doesn't matter how long ago this has happened. If you were in a black persons shoes, you would act and feel the same way. Racism and stereotypes are two big problems. Ignorant people think it is alright to be racist and to stereotype people then they want to say 'don't judge me' while unknowingly judging others.
That's my nigga, we do everything together!

He's just a lazy nigga.