A series of mental images a girl will use to pleasure herself in the shower. This can be compared to the masculine term: Spank Bank.
Girl 1: "Oh damn girl did you see Robert Downy Jr. in Iron man?"
Girl 2: "Yeah, I'm putting that on my muffin buffin' bookshelf "
Girl 2: "Yeah, I'm putting that on my muffin buffin' bookshelf "
by BertGregor June 12, 2008