Hihin is the standard Japanese written sound for a horse neighing, equivalent to whinny or neigh in English, and it appears constantly in manga sound effects, anime, and children's media. Clips labelled hihin spread on soundboards as a quick, recognisable horse cue that needs no context or dialogue. The numbered version suggests multiple takes were uploaded for creators to pick a favourite length and pitch. It remains popular because the sound is universally understood, works for both real horses and cartoon reactions, and fits farm, racing, and comedy edits equally well.