Definition of gleets:
(n) :
(vulgar, slang) A urethral discharge, especially as a symptom of gonorrhea.
(v) :
To ooze, as gleet (noun sense); to flow in a thin, limpid humour.
(v) :
Of water: to flow slowly.
(n) :
(obsolete, except Scots) Any slimy, viscous substance.
(n) :
(obsolete, except Scots) Stomach mucus, especially of a hawk.