A stank, vile substance left over from gay sexual intercourse. It is usually sticky, and contains, of course, male ejaculate, fecies, and saliva. It is usually found in pubic areas around the genitals and anus. It can be viscous, or runny. If left to dry, it is impossible to get out of pubic hair easily.
Jason went to the bathroom after having sex to clean the gifflegup from his pubic hair. His lover, Joe, also had to clean gifflegup from his anus.
by Shane December 28, 2003