「Unified opinion」after a TEST or TRY OUT prior to a firm commitment with「horse」and then agree as to its worth, best use, or value with a「unified, unanimous opinion of both sides」about the results. Note that while this glyph may refer to riding or mounting upon the animal in addition to the usefulness as a plough or pack horse, it is unlikely that any other tryouts are intended. Formerly, early humans hunted horses for their meat though, not to be used as beasts of burden, and the large volume of meat all at once inspired the idea of canning the excess. Raw horse meat sashimi is readily available in Japan today.
　As described in more detail at the entry for「horse」(馬), this element also refers to regular masturbation, an activity actively engaged in by wild horses many times per day. Perhaps a group of humans「agreed unanimously」to engage in this behavior as proof of one's non-infected status prior to more intimate contact with others, to TEST, TRY OUT, VERIFY, EXAMINE potential partners prior to a firm commitment. By the way, early man soon discovered that horses were not praiseworthy, recommendable, or suitable in the same manner as were ewes, for a variety of reasons, not the least being the danger of the animal kicking backwards or suddenly lurching forward when startled…sheep wool makes a handy grip but horse hair is often short.
　「Horse-like masturbation with all in agreement, multiple persons rowdy with rod reciprocating horizontally in juxtaposed orifices」as the appearance of copious vaginal froth on the surrounding fringes of the vagina, labia, and (if any) the penis, that slithers continuing to the anal orifice, or depending upon her posture, over the breasts and neck if the knees are positioned beside her ears: during ovulation of a female human and estrus of other animals such as sheep, the individual can become more sexually aroused than at any other time. Adding a dildo and/or an actual penis with enthusiastic action acts just like a kitchen whisk with frothy white discharges whipped up and resembling egg white meringue, mousse, cotton tufts and tassels, or sheep wool, and when observed causes great excitement. Froth is pumped out spurting from the vaginal orifice about once per second as the muscles contract and release during successive waves of orgasm, forming what appears to be virgin sheep wool surrounding the quivering orifice.
　「As a woman's cycle progresses, the mucus secreted from the cervix will change due to hormonal fluctuations. A woman is considered to be ovulating and fertile when the mucus is clear, stretchy and slippery, and looks like egg whites.」
　　[　https://ic.steadyhealth.com/most-fertile-cervical-mucus 2017-05-03　]　
　「Understandably this 'foaming at the mouth' phenomenon has your nerves on edge. But, if you were recently tested for sexually transmitted infections (STIs) and received a clean bill-of-health, most likely the foam-like substance is just a result of the combination of two art forms: The Joy of Sex and The Joy of Cooking. The main ingredient here would be semen…. Semen is loaded with protein, a pinch of sugar, and a dash of salt. The dildo and your boyfriend's enthusiastic 'mixing' inside of you acted just like a kitchen whisk.」
　　[　https://goaskalice.columbia.edu/answered-questions/foaming-after-sex/ 2017-05-03　]　
　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)
Chinese: to examine; to test; to check
Unihan extended: test, examine, inspect; verify
EDRDG: verification; effect; testing