up·start /ˌʌpˈstɑrt/
 暴富者,暴發戶,傲慢自負之人(a.)暴富的
 Up·start v. i. To start or spring up suddenly.
 Up·start n.
 1. One who has risen suddenly, as from low life to wealth, power, or honor; a parvenu.
 2. Bot. The meadow saffron.
 Up·start, a. Suddenly raised to prominence or consequence. “A race of upstart creatures.”
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 upstart
      adj : characteristic of someone who has risen economically or
            socially but lacks the social skills appropriate for
            this new position [syn: nouveau-riche, parvenu, parvenue,
             upstart(a)]
      n 1: an arrogant or presumptuous person
      2: a person who has suddenly risen to a higher economic status
         but has not gained social acceptance of others in that
         class [syn: parvenu, nouveau-riche, arriviste]
      3: a gymnastic exercise performed starting from a position with
         the legs over the upper body and moving to an errect
         position by arching the back and swinging the legs out and
         down while forcing the chest upright [syn: kip]