What's the difference between a nigger and a pile of dog shit The dog shit will turn white and lose it's stink
This is a pretty mean joke.
...Yes, it's funny. I bet your friends will like it too
Comparing a black person to a piece of poop is a really mean thing to do. In addition to that, referring to them as a slur is bad as well. Just a really insensitive joke to make about black people in general.