When a man slices off his own phallus, affixes two Popsicle sticks to it, one on either side, and inserts it into his own rectum. After the initial use, although generally not recommended, the dismembered member may be used by other partners for their own sexual pleasure.
"Yo man, did you hear what happened to Johnny?''
"That skanky hooker from down the block got him to give himself a one-way ticket on the Stimpleton Express."
"Aw, what a scum, I'm gonna murder that bitch and then you and me are gonna go Mung Diving, ya heard?"