junkyard personality 

When a person's opinions, behavior, and other personality traits are taken from other people, as well as what that person observes in the media, in place of speaking and acting for one's self.

"Does James think he's the only one who watches the news or action movies? He sounds like John McClain trying to mimic John McCain. He has such a junkyard personality!"

junkyard personality by tyankou October 9, 2011