riding machine
(Jouba machine)
A machine that simulates the effects of rodeo. Exercises seldom used muscles in the dorsal and abdominal regions.
Although not intended for sexual use, it was suggestively and famously featured in several fanmade Idolmaster videos, and there is a vibrator-equipped version called the sybian, which IS for sexual use and only borrows the straddling position of a riding machine.
See also
- Jooba-P (real perpetrator)
- Nicopedia article(JP): 'Jouba machine'
- NicoNico Tag Search: 乗馬マシンシリーズ
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Youtube Keyword Search: 乗馬マシン | Rodeo Machine