no mate
used as a 'put down' when directed at any individual,group or suggestion by an individual. Is always said with a blank faced expression and a monotone voice to indicate your utter contempt and disdain for someones suggestion or action. 
a)person A: Hi, can i sit here?
  person B: no mate

b)Person A: Oh, here comes Trent,
  Person B: Yeah, hes such a 'nomate'

