0 an underground room in a shop where things are sold at reduced prices:
1 (of prices) extremely low, or (of products) of low quality:
2 a store or a part of a store, often underground, where things are sold at reduced prices:
City leaders and proprietors accommodated them by mandating 5-cent fares or creating 'bargain basements', the latter a further elaboration of the classification system developed during the late nineteenth century.
Bargain basement used to be a literal basement in downtown department stores.
There are no "bargain basements" for food overseas any more.