If Skippy is peanut butter and not bush tucker then it sounds interesting. Peanut butter is, for me, food of the Devil and completely irresistible. Whole Earth Organic with no added sugars,preferably, but I'll eat any old whipped sludge in an emergency. Skippy may qualify here.
I wonder if you could get this kind of effect from one of those Joe Walsh/Herbie Hancock/Peter Frampton voice box thingies with a tube. That is what it sounds like, to me, whether it is or not. Does anyone know if one of these has ever been used for a bass? if so, examples?