FungleTussen or FungleTuss is a improper name for a new form of Chlamydia, not to be confused with FungleTussy. The medical term for FungleTussen is belymphogranulum venereum or LGV. Most times it is a derogative statement to guys or girls that seems repugnant, revolting, or just plain nasty.
Dang, that gurl be lookin' like she gots the FungleTussen.