The phrase "holiday hangover" means feeling tired, worn out, or low in energy after the excitement and busyness of a holiday period, like Christmas or New Year's. Full definition
And none of this will matter one shred to a Chelsea fan, whose bank holiday hangovers will be just as well - earned as any other side's fans in history. (sbnation.com)
Stock traders would be best advised to avoid a holiday hangover, because there have historically been huge money - making opportunities in January, when fourth quarter earnings season kicks off. (businessinsider.com)