The phrase combines the Japanese words for liking something intensely with a verb suggesting ruin or extinction, creating a hyperbolic way to say affection has become too much to bear. It spread through short-form video as a caption and reaction sound, especially in fan communities where viewers celebrate characters, idols and fictional couples. Because the wording is short, rhythmic and easy to lip-sync or overlay, it travelled beyond its original posts and became a reusable shorthand for over-the-top devotion. Its appeal endures because it captures a familiar online feeling in just a few seconds.