The song is called "Goodbye,Horses" who can hear this song and not think of the Buffalo Bill character stuffing his junk under him and dancing around in the robe. Classic movie scene.
http://www.youtube.com/watch?v=5_waIjo5CLk
I think that's referred to as a "mangina". Oddly enough, Mangina is also the name of a rare asian species of moth, a feature of the film, though not the same breed. I suspect the writers of the film had some knowledge of the irony.
Got to give him props for doing that, and the whole "Hey Vern, I'm Ernest" routine he pulled in this movie. Jim Varney should have been proud.