I'm not sure if it was Jefferey Rowland, Jeph Jacques, or possibly Mitch Clem (all internet cartoonists) who dubbed the lint that occasionally find their way into one's crack "butt garbage". Oddly remembering this tidbit, I'd like to propose we call this "Butt Dew".
Using it in a sentence made me smile, too, as in: "I've got a Duane heading south along the crack..." which is even more giggle-inducing if you use your traffic reporter voice.
I was at a wedding yesterday and it was outdoors and very hot and I was starting to get irritated at the whole thing and then... I felt that drop make its way down my back, thought of all of you, and almost laughed aloud at the wedding. <grin>