Latrinalia

Latrinalia is a type of deliberately inscribed or etched marking made on latrines; that is, bathrooms or lavatory walls. It can take the form of art, drawings, or words, including poetry and personal reflections. Other types of latrinalia include political commentary and notes on love as well as derogatory (sharing low opinions) comments and pictures. Humor is also common, such as the phenomenon observed on some college campuses of writing puns about grout in the grouted spaces between tiles. When done without the property owner's consent, it constitutes vandalism. Some venues have attempted to curb such vandalism by installing in the lavatory large blackboards and providing free chalk; it is hoped that patrons will avail themselves of the blackboard and chalk rather than applying their latrinalia directly to the walls or toilet stalls.