Reimu Hakurei is the shrine maiden protagonist of Touhou Project, the long running Japanese doujin game series created by ZUN of Team Shanghai Alice, first appearing in the 1990s. Gachigire combines gachi, meaning serious, with kireru, meaning to snap, and is used online for a genuine angry outburst. Clips labelled this way circulate in anime and Touhou fan communities as a shorthand reaction, shared in short edits and soundboards where a brief Japanese rage line instantly signals that a character has completely lost patience.