Latrinalia is a type of deliberately inscribed oretched marking made onlatrines; that is, bathrooms or lavatory walls.^[1][2][3] It can take the form ofart,drawings, orwords, includingpoetry 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 writingpuns aboutgrout in the grouted spaces between tiles.^[4][5] When done without theproperty owner'sconsent, it constitutesvandalism. Some venues have attempted to curb such vandalism by installing in the lavatory largeblackboards and providing freechalk; 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.^[6][7]

An important work in the study of latrinalia isAllen Walker Read'sLexical Evidence from Folk Epigraphy in Western North America: A Glossarial Study of the Low Element in the English Vocabulary. The work describes and collates examples of graffiti observed by Reade on a road trip throughout the Western United States in 1928. It was privately published in Paris in 1935 since its description of bathroomgraffiti was considered too racy for American publishers.^[8] It was eventually published in the United States in 1977, under the titleClassic American Graffiti.^[9] The work was described as a classic "model study" of latrinalia that "deserves the attention of any serious student of American language" in a 1979 review, which noted that even then it remained hard to access and "excessively rare."^[10]

The lateAlan Dundes, a folklorist atUniversity of California, Berkeley, coined the termlatrinalia in 1966 to refer tograffiti found in restrooms.^[11] Dundes preferred it over the termshithouse poetry, as not all latrinalia is in verse or poetic form.^[11]

The word is derived from thecompounding oflatrine (or toilet) and thesuffix-alia, which signifies a collection of something — in this case bathroom writings.

• Graffiti
• Servít je vůl
• Toilet humour
• Vandalism

• Joseph Gelfer,The Little Book of Toilet Graffiti
• Jim Morrison,Privy Thoughts: Some Toilet Graffiti Found On University Bathroom Doors

• From The Bathroom Wall - A blog about bathroom graffiti and other humorous topics OFFLINE 2 Sep 2022
• Latrinalia (e Bathroom Graffiti) — Electronic Bathroom Graffiti uploads from around the world.
• Bathroom Graffiti — Bathroom Graffiti by author and photographer Mark Ferem
• Bathroom Graffiti Project — features and rates hundreds of photos of latrinalia from around the world
• Latrinalia — features galleries of bathroom graffiti
• Raina Williams,Content analysis: Latrinalia,Department of Psychology,University of California, Davis
• Mark Ferem,Latrinalia: "It's all in The Head",50mm Los Angeles
• Matt Schneider,Stall Wall, an ethnography on latrinalia
• Origins of Bathroom Graffiti Documentary
• The Writing on the Stall