A type of virus that infects regular, non-black people, and turns them into total niggas.
Have you seen Amanda Bynes lately? She really caught niggagitis hard...
Why is Justin Bieber trying hard to fit in with all his black rapper friends? I think he caught a case of niggagitis
Dammmn, have you seen Miley Cyrus' new look? Shes looking ratchet, must've been niggagitis