This is a word used when calling someone a Nigger or a jigaboo isn't enough so they have to combine the two for a harsher slur
Pronunciation Ja (like morant) - Nigga- Boo
janigga is janemba from the movie Dragon Ball Z: Fusion Reborn, except in this verse of the dragon ball multiverse he is black, and he goes by the name "janigga"
I am not Goku or Vegeta! I am Gogeta! It's over, Janigga! I've come for you!
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failure shower.