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What is the idiom or single word for a person who just talks high-flying to show himself important and powerful? But, in actuality, he is not what he tries to portray himself as.

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  • a braggart, a poser...
    – Jim
    Commented Mar 7, 2016 at 0:09
  • 1
    Donald Trumpeteer? Commented Mar 7, 2016 at 0:39
  • Among an older male generation in Britain he would be called a bull shitter.
    – WS2
    Commented Mar 7, 2016 at 0:52

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