Definitions from Chinese dictionaries provide a clearer description of the meaning of this glyph: DEPRAVED, PERVERSE, VICIOUS, CONTRARY TO ACCEPTED BELIEF, DEMONIC, UNHEALTHY INFLUENCES CAUSING DISEASE, ABNORMAL, just REALLY MEAN and NASTY. Left element means「fang, sharp protuberance」and the right element of「village, orifice of twisting scorpion burrow」or「vagina」(see 邑 and ⻏,「orifice for sex」), or simply「full frontal nudity.」「Fangs in village」may be referring to a RABID animal.
The English expression of「escaping by the skin of my teeth」makes no sense of course, but the original form of「escaping with my skin in her teeth」does indeed represent narrowly avoiding disaster of one's prepuce and surroundings.
「Sharp protrusions while in front view of naked genitalia」may refer to bone splints emerging from no-longer-integrated feet (over time) that resemble「bird claws」(鄢).「Fangs with vagina」or a「vagina with fangs」would explain all the given Chinese definitions, from either a male or a female perspective. Nevertheless, most female humans do not have teeth in their actual vaginal cavity, yet in dynastic China surrogate vaginal cavities constructed in no-longer-integrated feet would from time to time burst a bone splinter as a sharp protuberance, and surrogate vagina cavities of an oral orifice did indeed contain teeth, at least at a mostly young age, used vengefully when clenching (see 'teeth' 歯 and 齒).
Interestingly, the males of most mammalian species are indeed equipped with penile barbs that upon penetration resemble「fangs in a vagina」and may be one cause of animals howling while copulating…domestic male cats for example, have about 150 or so backward-facing pricks on the penis, presumably to prevent penalties for an early withdrawal before leaving a deposit.
Snakes in fact have「fangs in vagina」(the cloaca, actually, a snake's equivalent to a vagina). Snakes have vestigial hind legs, claw-like appendages that are held inside around the cloaca (the orifice used for copulation) called 'anal spurs,' barbs with which the female snake firmly attaches herself to the skin of the male snake during reproduction. The male snake possesses the same inner barbs but also has forked hemipenes normally held inside the body ('short legs' with two forked seminal troughs that are always 'loose and dripping' since they are not fully closed), and also attaches barbs to the inside walls of the female's cloaca…while the male snake possesses a forked penis, note that he normally does not copulate with two females simultaneously.
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.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: demonic; iniquitous; nefarious; evil; unhealthy influences that cause disease (Chinese medicine)
Japanese EDRDG: wicked, injustice, wrong
Unihan extended: wrong, evil, depraved, vicious, perverse, heterodox