「Tonguing sitting person, biting while tonguing」with「spitting, choking, retching」or, both of these elements together as「biting off a chunk」meaning ALREADY, PREVIOUSLY, and TOO LATE TO DO ANYTHING ABOUT IT. Depicting a condition that has been ALREADY EXPERIENCED perhaps LONG AGO, such as the「been there done that」concept, or déjà vu, and unforgettable by BOTH parties.
　「Clench with tonguing mouth filled to rated capacity, gagging」: while it's not pretty, one scenario is of a small person while training as an apprentice concubine but as yet still unaware of the signs indicating her client was about to ejaculate, took a full load without adequate preparation and「choked」on the jism…perhaps「just one」such experience is sufficient to learn that lesson. Left「clenching jaw」element, another condition that often occurs prior to regurgitation, is used here in older versions of this glyph. Perhaps what was formerly depicted was the inexperienced fellatrix choking and then clenching involuntarily as a reflex action during ejaculation, hence the meaning ALREADY, PREVIOUSLY, and TOO LATE to do anything about it, depicting a condition that has been ALREADY EXPERIENCED but never forgotten by either person…
　「Viewing women as commodities [see 品] was also made customary…, both in the suddenly expanded labor market and within relationships. Men could sell their female kin to slavery or prostitution, and frequently did.」
　　[　https://www.zum.de/whkmla/sp/0910/hersheys/hersheys5.html 2011-04-05　]　
　「Bound feet were a mark of beauty…. The process was started before the arch of the foot had a chance to develop fully, usually between the ages of 2 and 5. …Qing Dynasty sex manuals listed 48 different ways of playing with women's bound feet.」
　　[　https://en.wikipedia.org/wiki/Foot_binding 2012-12-17　]　
　「In traditional Chinese medicine, there has never been a mental disease called pedophilia (or an equivalent term), or homosexuality, or most of the other so-called sexual variations for that matter. …Children are usually described as natural sexual beings and erotic stimulation and sex-play are seen as beneficial to their healthy development.」
　　[　https://docx2.com/wp-content/uploads/Are-Any-of-the-Pharaphilias-in-DSM-Mental-Disorders_.pdf 2023-05-14　]　
　CLENCHING and related problems and fears are present in these glyphs:
　歯 and 齒 as teeth.
　恨 regret, hate, resentment, rueful, hold a grudge, malice, bitter feeling, rancor, to curse and swear.
　艮 chewing.
　仡 being fed up with conditions and bravely doing something about it while unafraid of the consequences.
　旡 suddenly choking on something in one's throat.
　兂 clasped with teeth.
　邪 wickedly demonic.
　拑 pinning with clenched teeth.
　音 loud noise.
　既 and 既 too late, happened already, unchangeable.
　茱 and 萸 bloody stump, dogwood.
　飢 ravenously chomping meat.
　啗 enticing lure, gnawing meat.
　啖 threaten a superior, taunt and torment, reckless endangerment while tasting and eating.
　猖 ferocious and insane, mad, reckless, not following the rules.
　惕 healthy respect of danger.
　𣇄 and 晣 biting off a chunk, bent by tonguing mouth.
　惮 and 憚 fear, dread, shirking, shrunk.
　喫 clenching with gasps.
　吃 and 喫 extirpate, destroy utterly.
　揕 bare-fisted jab, punch in the face.
　意 long in thought, intent, concerns.
　貇 tenaciously clenching jaw and not letting go.
　虞 horror, terror, terrorism.
　鉗 clamp and gag.
　𪗱 and 齟 discord, broken teeth.
　𪘚 and 齬 gritting one's teeth, great hatred.
　齭 pain caused by teeth.

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: already; since; both… (and…)
Japanese: already, too late, in the meantime, meanwhile
Unihan extended: already; de facto; since; then
EDRDG: previously; already; long ago