(名詞) 灰色星期四 (美國感恩節的晚上)。當天晚上有些零售商就開始營業並持續至隔天凌晨或整晚營業。亦寫成 Grey Thursday。cf. Black Friday (黑色星期五)。
Now Black Friday is slipping into "Grey Thursday" and taking retail workers with it. Walmart will open its doors at 8pm on Thanksgiving Day. Others, including Sears, Toys R Us and Kmart, will also open at 8pm on Thanksgiving. Target opens at 9pm.
—Dominic Rushe, "Black Friday slips into 'Grey Thursday' as retail giants face staff backlash," The Guardian (London), November 14, 2012
Once upon a time, we used to call Gray Thursday “Thanksgiving.” With Black Friday sales starting earlier each year, they were bound to bleed into Turkey Day.
—Tony Bravo, "The Sixteen Days of Holiday Retail," San Francisco Chronicle, November 20, 2014