Well as proven by many replies on here, you're wrong, aren't you?Of course everyone has heard the phrase “Man City” before!
But never, in a million years, would City fans use that in day to day conversation.
“Do you fancy coming to the Man City game, mate?” Fuck off.
Plenty of CITY fans are telling you that they use the term Man City.
But if you feel the need to reply fuck off to that question, then there is something not quite right in your head, tbh.