Entry 2 senses · 2 variants Webster, 1913 black and blue · IPA adj. n. 01 adj. discolored by or as if by bruising; -- of skin. 1. discolored by or as if by bruising; -- of skin. Syn. livid. 02 n. the dark color of a bruise in the flesh, which is accompanied with a mixture of blue. 1. the dark color of a bruise in the flesh, which is accompanied with a mixture of blue.