The phrase is associated with Matikanetannhauser from Uma Musume Pretty Derby, where her lively, festival-loving personality made the repeated Mambo Mambo chant a natural fan favourite. As a short audio clip, it spread through meme edits, gameplay videos and soundboards, where creators reused it as a quick burst of celebration. Its appeal is simple: the chant is instantly recognisable, easy to loop and fun to drop into almost any high-energy moment. That combination has kept it in circulation long after its first viral uses.