「Feet motions with watching for a big discharge, loose dripping orifice」suggest being SEIZED, ARRESTED by local human authority figures for being in violation of health codes, displaying symptoms of infectious conditions but not taking proper precautions, such as wearing a poultice codpiece and loincloth, or, overfilling the bundle with obvious spillage, seepage, and leakage.「Leg motions with loose dripping orifice」or「motion with big discharge of fluid」of a sick client at the brothels were ARRESTED, STOPPED for a time WHILE infected, UNTIL cleared as cured by the local shaman witchdoctor and government inspection stations.
　GOVERNING CONTROL, MANAGEMENT TACTICS, GOVERNMENT ADMINISTRATIVE REGULATIONS were ordered BY LAW and enforced during endemic outbreaks of sexually transmitted diseases in the attempt to stem the tide. Infected people were forced to wear a codpiece and loincloth to prevent contagious dripping in public places, and undergo treatment by reaming with a bougie, again and again until symptoms abated. Official records were maintained of the treatment results to enable tracing of an outbreak or resurgence, and shaman brute squads enforced the laws under government authority, going door to door when the need arose (see: 'magistrate, authority' 尹 and 津).
　Alternatively, it should be no surprise that audiences of humans have enjoyed viewing erotic「performances on stage」much longer than since the dawn of the Internet, or even the motion picture film industry:「foot motions on stage, on a raised platform」will continue WHILE, UNTIL one performer has SEIZED the other contestant and a「big discharge occurs」to the delight of the audience (眙), not unlike the original samurai-sumō wrestling long ago performed on raised compacted sandy soil platforms (坮)
　「From religious circles [Buddhists], same-sex love spread to the warrior (samurai) class, where it was customary for a boy in the wakashū age category to undergo training in the martial arts by apprenticing to a more experienced adult man. The man was permitted, if the boy agreed, to take the boy as his lover until he came of age. This relationship, often formalized in a 'brotherhood contract,' was expected to be exclusive, with both partners swearing to take no other (male) lovers. This practice, along with clerical pederasty, developed into the codified system of age-structured homosexuality…」
　　[　https://en.wikipedia.org/wiki/Homosexuality_in_Japan 2012-07-02　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: until; while
Unihan extended: until, when; seize, arrest
EDRDG: until; when; seize; arrest