- Type: Activity / Visual
- Description: A person remaining stationary and making themselves openly available for sex, often with multiple partners. Frequently involves them being used as a living toilet / urinal. May include or lead to body writing.
- Gender: The gender of the one being used determines if the tag is placed in the female or male namespace.
- Japanese: 肉便器
- Slave Tags: Female, Male - with notable synonyms human toilet and nikubenki.