Nightjohn

Nightjohn is a word you can use as an alternative to the n-word or calling someone a slave, the name is derived from the novel of the same name (the book is about slavery). If you wanna even be more sneaky and smart you can even say it in Spanish, which would be "Juan de la noche".

*Black person walking*

You: NIGHTJOHN, NIGHTJOHN, NIGHTJOHN, NIGHTJOHN, NIGHTJOHN, Juan de la noche