2)Somebody who is stupid/whom you dislike and feel the urge to make fun of.
3)A word to simply say, just for the hell of it.
Ash:"GOTTA CATCH DIS NIGGA!"*throws pokeball*
2)Marth: "Ha Ha, i just five-stocked yo ass in super smash bros. melee."
Kelby: "Shut up, you niggerypuff!"
Marth: "Fuck you, Kelby!"