ñero

"Ñero" is a Colombian slang that is used mostly by street person to say "mate" or "buddy", but it can also be a derogatory term against street people. It's like the N-word, you can call your friend "ñero" but if you call someone "ñero" they'll get upset (except it has less "weight" than n-word, they not gonna beat you up but they gonna be upset)

Good way: *your friend* - Que paso ñero? (What's up buddy)

Bad way: *someone* - Ese man es un ñero (That guy is a thug)