a grotesque, non-specific venereal affliction of a loathesome nature, frequently characterized by red, itching skin with a slimy feel and foul odor. Often caused by poor hygiene.
My roommate got his gleety schlong all over the toilet seat; now I must disinfect it.
Gleet is actually a generic term for any slimy or viscous substance, such as the thick phlegm found in the stomach of a hawk. It is most often used in reference to the runoff from a gonorrhoeal sore.
First, Mr Chandra, we mustskim the gleet from your genitals