2. Butter that has been borrowed by one two many neighbors (been around the block)
3. Gooey marijuana/beer/liquor left over after a night of partying
Got my dick in some nasty slut butter last night.
After Marjorie, Alice, Patricia, Gay Ted, Joanna and Mr. Winkis had borrowed the butter, I decided that it was slut butter and threw it out.
Everyone says my butter is slutbutter because I've let everyone on the block tap into it.
They can contrat this from having too much sex, with multiple partners. the bacteria from a mans penis infects the womans vagina therefore leaving an inbalance in the womans natural vagina bacteria.