The French phrase means end of turn, the point in a Yu-Gi-Oh duel when one player finishes playing cards and passes control to the next player. That simple game structure is why the clip travels well beyond the anime itself, appearing in duel edits, card game streams, and short videos where a round needs a clear ending. Fans recognise the turn-based rhythm immediately, even without following the full match, and creators keep using it because it signals closure in under two seconds without needing any explanation.