A mispronunciation of the word "bullion" (pronounced BOO-Lyahn), an exclamation stock traders sometimes make when executing a profitable deal. The word was misappropriated by douchebags with bad hearing to the meaningless word "Booyah".
Douchebag: "Booyah! I just found a nickel!"
Stocktrader: "Bullion! I just made $500K and wrecked your retirement nest egg!"
Stocktrader: "Bullion! I just made $500K and wrecked your retirement nest egg!"
by Amazingly Randy March 09, 2016