own a blackout
v. phr.— «Otherwise take any taxi plying the Blue Town route at the busy taxi rank and tell the driver- as confidently as possible, or with a good dose of Dutch courage- to take you to Mma-Ten Days. He will deliver you at the place with not much ado, even if you are drunk or have owned a blackout (in beer drinking parlance).» —“Mma-Ten Days At Your Service If You Wanna Tipple” by Gale Ngakane Mmegi/The Reporter (Gabarone, Botswana) Aug. 29, 2007. (source: Double-Tongued Dictionary)