From Longman Dictionary of Contemporary English(on) sale or return(on) sale or returnBritish EnglishBBT if a shop buys something on sale or return, it can return the goods that it is unable to sell → sale
Examples from the Corpus
(on) sale or return• This may be on a sale or return agreement without asking for payment.• Booksellers normally order books on a sale or return basis.• All available goods may be taken on a sale or return basis. 9.• All are on full sale on January 23-Knave sale or return from Blackhorse.• What is the position, though, where the buyer resells the goods on sale or return terms? 