Yu-Gi-Oh began as a manga before the anime series made Yugi Muto and his alter ego Yami Yugi famous worldwide in the early 2000s. It's time to duel became the show's signature challenge before card battles, and fans exaggerated the delivery into the d-d-d-d-duel stutter heard in this clip. Shared on soundboards and in fan edits, it grew beyond the fandom as a shorthand for any overdramatic showdown. It remains popular because even viewers who never watched the series instantly understand the joke and the challenge.