Similar to Duck butter, is that tangible layer upon layer of framunda sweat/cheese that grows on the gooch area during the hottest summer months. Color and consistency similar to old Nutella.
Boy, I was running behind that Johnny guy and he had some mean smelly jelly brewing.
When he luckily got the fuck on this morning and you start your period that afternoon; he comes home from work and you serve him up a Beer an shot, threw up the leg all sexy like and he says “what are you doin with your biscuits?” I said “this smelly jelly biscuit”