Matey is a word that, on the face of it, sounds very friendly but, on the other hand with vocal inflection can be used to sound quite the opposite.
1 - "ay-up Jim 'ows it goin' matey"?
2 - Poor old Jim trying to get some kip on a train near Birmingham in the UK keeps getting woken up by some young Yid Geezer singing. "Oy you wouldn't be so fucking happy if this were 1943 on the Reichsbahn matey"!