1. A remark made to someone being hauled off to jail, particularly someone you dislike. Once in jail, you imply that if the person (a male) drops a bar of soap in the shower, they will be forced to bend over and retrieve it. Thus, with there buttocks spread and in clear sight, will be subject to anal rape by a fellow inmate.
"Don't drop the soap!" I yelled as the burglar was taken away by the police from my home. His eyes began to tear up as he anticipated that hot, steamy shower.