Refers to something being WEDGED, or using something as a WEDGE.「Inserted, put into」on both sides with「two hands (arms in this case, perhaps).」External sources say putting items into the long sleeves on each side of clothing, and while that may be a limited use of this glyph in Japan where kimonos actually have long sleeves, in China concubine dresses were most often sleeveless…and the Chinese invented this glyph, not the Japanese. Putting items into a sleeve uses only one hand at a time naturally to perform the insertion, and causes that sleeve to become highly noticeable—moreover, that explanation fails to account for the use as an element. Much more likely is that something is「inserted one from each side」into something else, revealed by the original Chinese meaning as PLACING SOMETHING UNDER ONE'S ARMPIT(S). The more general meaning is COVERING something INSERTED ONE FROM EACH SIDE under the armpits. Formerly (see 夾) referred to two persons entering armpits from both sides, an armpit fetishism known as MASCHALAGNIA, and AXILLISM (masturbating with an armpit). Also meaning CLAMPED, and SQUEEZED people on each side, so you must ask yourself, what are these three people doing to arrive at the meanings of SQUEEZED, PRESSED FROM or ON BOTH SIDES, CLAMPED…WEDGED? and what is happening, in light of other Chinese meanings of INTERSPERSE, MIX, MINGLING (see 交)? As this glyph is an element in another meaning「coming, approaching, caused by, be due to, about to come」by doing some SQUEEZING, PRESSING FROM EACH SIDE, CLAMPING, TWO LAYERS, INSERTED BETWEEN.
　Without a doubt, the Irish also have knowledge of their own to pass along in these trying times:「Masturbation will not spread coronavirus, especially if you wash your hands (and any sex toys) with soap and water for at least 20 seconds before and after.」Nonetheless and regrettably, unlike in dynastic China, it must be undertaken alone to truly be a preventative countermeasure but still achieve the desired result with some degree of safety.
　 　[　https://www.sexualwellbeing.ie/sexual-health/sex-and-coronavirus/ 2020-03-31　]　
　The Dutch, too have the same solution—it seems masturbation has become mainstream in the media the world over due to the coronavirus (it has always been 'the main stream' in reality, albeit covertly for most folks):
　「'Don't have sex with your partner if they have been isolated because of (suspected) coronavirus infection,' the RVIM says. 'Sex with yourself or with others at a distance is possible (think of telling erotic stories, masturbating together).'」
　　[　https://www.theguardian.com/world/2020/may/15/dutch-official-advice-to-single-people-find-a-sex-buddy-for-lockdown-coronavirus 2020-05-16　]　
　Needless to point out perhaps, but Chinese shamans from antiquity hit upon the same solution as a pandemic preventative countermeasure, honed for ultimate client satisfaction by utilizing naked females with no-longer-integrated feet as masturbatory sex buddies available for short-term rental with erotic visualization of live prepubescent female genitalia engaging in autoerotic stimulation herself, as a solution to the same problem facing us now, but in pre-Internet days.

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)
Unihan extended: concealing stolen goods in one's dress