The Grimace Shake trend followed the June 2023 release of a limited purple berry-flavored drink celebrating the character Grimace’s birthday in the United States. Short videos turned the cheerful promotion into dark comedy by showing people tasting the shake before collapsing, disappearing, or appearing in bizarre staged scenes. The contrast between an innocent drink review and an exaggerated horror-style aftermath helped the format spread quickly. This audio remains useful because its recognizable opening provides a compact setup for that visual bait-and-switch.