sackfulEnglishOxford Dictionary of Englishsackful /ˈsakfʊl / ▸ noun (plural sackfuls) the quantity of something held by a sack: a sackful of rice. ▪ British English a large number or amount of something: they've got a sackful of valuable entertainment copyrights there was plenty for dessert—apricots and mulberries by the sackful.