Entry 3 senses · 2 variants Webster, 1913 Gleet · IPA /ɡliːt/ n. v. i. 01 n. A transparent mucous discharge from the membrane of the urethra, commonly an effect of gonorrhea. 1. A transparent mucous discharge from the membrane of the urethra, commonly an effect of gonorrhea.(Med.) 02 v. i. To flow in a thin, limpid humor; to ooze, as gleet. 1. To flow in a thin, limpid humor; to ooze, as gleet. 2. To flow slowly, as water.