The 'Anime Wow' sound effect, famously known for its high-pitched and sparkling delivery, originates from the 2004 magical girl anime 'Futari wa Precure' (Pretty Cure). The sound was used during a transition or item reveal but gained legendary status online through Vine and YouTube remixes in the mid-2010s. It is typically used to punctuate moments of sudden awe, beauty, or sarcastically impressive feats. In the meme world, it serves as a universal auditory signal for 'shook' or 'amazed,' often paired with glowing eyes or sparkling visual effects to satirize the dramatic flair of Japanese animation.