society > leisure > entertainment > pastimes > game > games of chance > bingo or lotto > [noun] > specific numbers (3)
In bingo: (a nickname for) the number sixty-six.
(a humorous nickname for) the number eleven in the game of bingo; sometimes shortened to legs (see sense 17).
In plural. (A humorous nickname for) the number eleven in the game of bingo; short for legs eleven n. at compounds 2a.