The phrase nanda kore wa is Japanese for what is this and has long been used by anime fans as a shorthand for confusion. This particular recording comes from Alexelcapo, a Spanish-speaking streamer whose expressive reactions are frequently clipped and shared as memes. The short length made it ideal for soundboards, where it sits alongside other quick reaction lines. It continues to circulate because the delivery is instantly readable even for viewers who do not speak Japanese, giving creators a fast way to flag something strange.