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 fuckinghappy if this were 1943 on the Reichsbahn matey"!