retail apocalypse noun1 •(US) The closing of numerous brick-and-mortar retail stores in the United States, especially those of large chains, beginning around 2010.Toys “R” Us is hardly the only retail operation to learn this lesson the hard way. The so-called retail apocalypse felled roughly 7,000 stores and eliminated more than 50,000 jobs in 2017. — 2018 formsretail apocalypses