The xylospongium or tersorium, also known as sponge on a stick, was a hygienic utensil used by ancient Romans to wipe their anus after defecating, consisting of a wooden stick (Greek: ξύλον, xylon) with a sea sponge (Greek: σπόγγος, spongos) fixed at one end. The tersorium was shared by people using public latrines. To clean the sponge, …
