Definition of Black Friday in English:

Black Friday

noun

  • The day after Thanksgiving, regarded as the first day of the traditional Christmas shopping season, on which retailers offer special reduced prices.

    ‘shoppers were snapping up deals on Black Friday’
    • ‘Distance was no object for Alabama shoppers looking for the best Black Friday deals.’
    • ‘Meanwhile, online sales on Black Friday were up 20.7 percent.’
    • ‘Most items bought during Black Friday, electronics, are items they want to sell to make room for newer items.’
    • ‘Security is high for shopping malls throughout the region, after several incidents of violence among Black Friday shoppers.’
    • ‘Reports say the retailer is reporting its best-ever Black Friday.’
    • ‘The race is on to be first in line for this year's best deals on holiday gifts: Black Friday is almost here.’
    • ‘Last year, an estimated 226 million shoppers spent a record $52 billion in stores and online over the Black Friday weekend.’
    • ‘One of the best ways to save money on Black Friday is to not fall prey to retailers' seemingly "great deals"’
    • ‘Some customers said they're wary of buying anything before Black Friday, when they usually kick off the holidays.’
    • ‘Some items tend to be better deals than others on Black Friday.’

Origin

Early 17th century (as school slang, in the sense ‘Friday on which an examination is held’). The shopping sense dates from the 1960s and was originally used with reference to congestion created by shoppers; it was later explained as a day when retailers’ accounts went from being “in the red” to “in the black”.