Stunned mullets. Australian colloquialism; to act like a stunned mullet is to be "dazed and confused," "in a furious rage," "mad as a cut snake" and "in a state of undeniable anger."
Smarthouse (Australia) reports: Senior Sony executives are according to one senior insider acting like "Stunned Mullets" today (October 18, 2007) following the decision by key Blu-ray partner JB HiFi to drop their exclusive support for Blu-ray and start selling the Toshiba-backed HD DVD.
Disclaimer: Someone pointed out that David Richards, the journalist who reported the article, may have some credibility issue. Please see Alternative Sources. (Which means you should read his articles with a fair degree of skepticism.)