The story
The game takes its name from the principle that the famous person must be at least as famous as the painter Sandro Botticelli.
Etymology from Wiktionary, CC BY-SA 4.0.
Botticelli
Today it means: A guessing game in which one person or team thinks of a famous person and reveals the initial letter of that person's name, and then answers yes/no questions from the other players as they guess at the identity. Full definition →