The clip comes from the official Fate/Grand Order radio show, where voice actress Rie Takahashi's manic laugh during a segment made fans dub her Rieri, blending her name with a villainous giggle. Shared across anime meme communities and soundboards, the short clip became a staple reaction for dark twists and cursed edits. Editors also pair it with other iconic anime voice clips, like the playful Anime Ahhhh sound and the Deez Nuts Got EM laugh, to build rapid-fire meme montages.