The phrase is most famously known as the setup for a popular linguistic pun that plays on the French words for "one, two, three" and "cat" ( chat ). 🐱 The "Un Deux Trois" Cat Joke

Shirts often feature a cat wearing a beret with the numbers 1, 2, 3.

There are numerous viral videos on TikTok and Instagram featuring "ninja cats" playing this game, where they freeze every time the owner turns around, mimicking the "soleil" (sun) phase of the game.