Some scholars insist that the right element refers only to manly samurai warriors, so that in Japan「person penis」seems to have been a page boy PROVIDING SERVICE to a samurai as only a gentle man can. Elements literally are person with penis SERVICING, DOING A JOB of some sort. Actually, many if not most tough guy samurai warriors were regularly engaging in sex with their page boys, often in preference to their wife or concubines…it was the norm, and so this glyph literally means, as in English,「to service someone.」
Possibly could be read as a「person with a hard-on」to do well, ready to provide service to someone and DO them, but politely, of course. This glyph unsurprisingly also refers to one's JOB, or to various service provider 'jobs,' as the old source of meaning of the expression,「…it comes with the job」(see 'come' 来).
「From religious circles [the 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 ]
In China, meaning a SERVICE PROVIDER:「person's penis.」「Ten men in array」or「ten men with one」or「array of tools」and so on, as the de facto limit for a single service provider to handle simultaneously, determined during various competitions…from the bottom up: two no-longer-integrated feet, one anus, one vagina, one tit set, two hands, two armpits, one mouth. While other bodily sites and combinations were attempted of course, this one proved to be the only setup that was workable for all eleven participants, given the logistics involved of physical body placement. See Qing Dynasty sex manuals and erotic Chinese art for details. Note that some added lubrication was necessary in some spots, and everyone needed to cooperate while providing support to one another, hence meaning the polite form of TO DO…and it is no use denying that service providers held these competitions. Humans still do, today.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: to serve as an official; an official; the two chess pieces in Chinese chess guarding the "general" or "king" 將|将
Japanese EDRDG: attend, doing, official, serve
Unihan extended: official; serve government