Blastaway /ˈblɑːstəweɪ/ noun1 •(UK, slang) A cocktail of Castaway (an alcopop) and Diamond White (a brand of cider).We drank Blastaways and danced to Everything But the Girl's 'Missing', 'Dreamer' by Livin' Joy and 'Rhythm is a Mystery' by K Klass which we played repeatedly, […] — 2013 formsBlastaways