can
ormay
in place ofcould
.) •When Sally and Mary met at the agreed time in the hotel bar, Sally said to Mary, “Could I buy you a drink?”
2. Fig. Could I make you a drink? (A slightly humorous way of offering to prepare and serve someone a drink, as in one's home. Also used withcan
ormay
in place ofcould
.) •Bill: Come in, Fred. Can I buy you a drink? I've got wine and beer. Fred: Great. A beer would be fine, thanks.