I asked my great grandpa if he had any pets as a kid He said: "Well, my family owned a lot of exotic, imported monkeys from africa that we used to call 'niggers'. My favourite one was named Jamal"
Are you being serious or is that some kind of joke?
Yes, of course it's a joke.
Making jokes about black people being like monkeys is based on an awful, racist stereotype. In addition, using racial slurs is terrible. How would you feel if people said hurtful things about you?