graffito
/ˈɡræfɪtoʊ, -iːtoʊ/Definitions
1. noun
A drawing or inscription on a wall, etc., especially one made secretly at night.
“The ancient city was famous for its graffito, which depicted daily life in ancient Rome.”
2. noun
A temporary or unofficial inscription on a surface, often used as a form of protest or social commentary.
“The graffito on the wall was a powerful statement against the government’s policies.”