The built up mixture of piss, nut and other bodily fluids under the foreskin of a penis. It can be enjoyed on toast with spices such as salt and paprika. Funnily enough, prime untouched Nutter Butter can be sold at a high price to certain individuals.
"Damn man, since I've become vegan, I can't have dairy and shit like that." "Yo you should try Nutter Butter dude, it can be grown easily by yourself and it isn't cruel to any animals!"