1 definition by Crackberry:)
(Noun) The six day period from December 26th-December 31st during which people buy large amounts of Slimfast, weight loss supplements, detox kits and protein bars.
During the postholiday waistline shopping period, stores like GNC and Whole Foods see a jump in their sales while consumers try to shed their holiday pounds.
by Crackberry:) December 30, 2010