腰を振るように上下するフィットネス機器。跨って揺られる姿が性的な演出として描かれる。
使いどころ: エロコメディ・アイマス系のネタ絵に。
混同しやすいタグ
同じ分類のタグ 性具
Danbooru の英語定義
A machine that simulates horseback riding, meant to exercise muscles in the dorsal and abdominal regions. Although not intended for sexual use, it was suggestively and famously featured in several Idolmaster videos made by Jooba-P. Not to be confused with a mechanical bull, which is a similar concept, but considerably more vigorous (and would make a poor sex toy on account of its habit of flinging its rider to the floor). Also not be confused with a Sybian, which is for sexual use and only borrows the straddling position of a riding machine.