I'm the baddest motherfucker, always have and always will beN*ggas take one look at me and they be like, skeet skeetAll these hater jealous bitches tryna judge meWhile I'm lookin' cute as fuck, they be lookin' frumpyI always wear my nightmare gear, it's always Halloween, hoBitches tryna be my friend but I just like being aloneI'm so motherfuckin' rareIf you watch the above video (I've included a transcript for part of the video; as much as I would love to have transcribed more of it, I am in pain from the little thirty second excerpt already so that's all you get for now) you can hear that Abby uses the word n*gga.
To the right is a screenshot from a conversation that Abby had with her ex-boyfriend (presumably) back in February of 2015 where she also uses the n-word again (as well as the word f*ggot; Homophobia).
Here is an article from the Huffington Post outlining why you shouldn't say the n-word if you aren't black.