Elements and meanings are associated both with chickens and with the lifestyles and relationships of「birds, chicks」as euphemisms for people with no-longer-integrated feet used as sex objects cooped into a harem copulating with only one rooster…note the term 'rooster' refers to the male cocks that roost upon the backsides of their harem of hens whilst copulating with her cloaca, the bird's version of a vagina-anus-urethra port-combo gland.「Feet meat, emissions in rotation, woody」described the conditions in a chicken COOP with lamed chicks or birds cooped up for a rooster to mount easily, and that same imagery fits the CRUEL treatment of young girls becoming sex meat for sale or as rental objects. ROOST means to「sleep or rest temporarily」but not a nest. MEASURED BOX initially in China referred to places where hen chickens build a nest and lay, which is not the roost, and both were often made of wood. But in Japan, now refers to a handheld square wooden container used to measure volume of dry rice grains, or, with which to drink sake.
　A rooster naturally gets around to each hen in the animal harem and services her via copulation on a regular「rotation of emissions」for optimal results and peace within the coop, and the same applies with a gaggle of jealous and very young human females competing constantly for the attention of a single male, for whatever reason. The ROOSTS also must be constructed all at the same height, if possible, within a single coop to avoid fighting among the females for the highest roosting perch. MEASURED BOXES for nesting also must be the same relative size for these same reasons (and is why they are called 'measured' so as to assure they are all about the same size and shape).
　「The hen will crouch (dip her head and body) to indicate receptiveness to the male. The rooster will then mount the hen and grab her comb, neck feathers, or the skin on the back of her head or neck to help hold onto the hen's back. The next behaviour is the tread (the rooster walks quickly in place on the hen's back [he does his gigue, dances a jig]) and finally the completed mating of the behavioural sequence. …The rooster usually ejaculates between 100 million and five billion sperm at a time with greater concentrations produced at the beginning than at the end of the day, when depletion occurs after many matings. …The frequency of mating follows a diurnal pattern with mating frequency reaching peaks early and late in the day. A rooster may mate from 10 to 30 or more times per day, depending on the availability of hens and competition from other roosters. However, the number of sperm per ejaculate is seldom less than 100 million which is the minimum required to maintain high fertility. With natural mating, better fertility will result when mating occurs after the hen has laid a hard shell egg. However, if the hens are mated frequently (daily), there is unlikely to be a noticeable difference in fertility regardless of when the matings occur. The rooster has a small phallus that becomes engorged with lymph to form a copulatory organ. The copulatory organ is rudimentary and at the time of mating there is practically no penetration.」
　　[　https://www.thepoultrysite.com/articles/1330/natural-mating-and-breeding 2014-09-29　]　
　As for the analogy between the CRUEL treatment of both chickens and harem chicks and birds, simply substitute「prepubescent human female in China a while back」for each reference to chicks and birds that become obese and lame, raised solely for meat or laying ability:「Chickens are arguably the most abused animal on the planet. In the United States, more than 7 billion chickens are killed for their flesh each year, and 452 million hens are used for their eggs. Ninety-nine percent of these animals spend their lives in total confinement—from the moment they hatch until the day they are killed.」
　「More chickens are raised and killed for food than all other land animals combined, yet not a single federal law protects chickens from abuse—even though two-thirds of Americans say that they would support such a law.」
　「Many chickens in factory farms get sick and die because of the cramped and filthy conditions. Instead of giving their birds more space and a cleaner living area, farmers mix large quantities of antibiotics into the birds' feed in an attempt to stave off disease, but many of the birds still die. A U.S. Department of Agriculture study found that greater than 99 percent of chicken carcasses are contaminated with E. coli bacteria, largely because of the filthy conditions in the sheds where they are raised.」
　「Many people do not realize that chickens are inquisitive, interesting animals who are as intelligent as mammals such as cats, dogs, and even some primates. They are very social and like to spend their days together, scratching for food, taking dust baths, roosting in trees, and lying in the sun.」
　「Dr. Chris Evans, administrator of the animal behavior lab at Australia's Macquarie University, says, 'As a trick at conferences, I sometimes list [chickens'] attributes, without mentioning chickens, and people think I'm talking about monkeys…'」
　「But chickens raised on factory farms each year in the U.S. never have the chance to do anything that is natural or important to them. A baby chick on a factory farm will never be allowed contact with his or her parents, let alone be raised by them. These chickens are deprived of the chance to take dust baths, feel the sun on their backs, breathe fresh air, roost in trees, or build nests.」
　「Chickens raised for their flesh, called 'broilers' by the chicken industry, spend their entire lives in filthy sheds with tens of thousands of other birds, where intense crowding and confinement lead to outbreaks of disease. They are bred and drugged to grow so large so quickly that their legs and organs can't keep up, making heart attacks, organ failure, and crippling leg deformities common. Many become crippled under their own weight and eventually die because they can't reach the water nozzles. When they are only 6 or 7 weeks old, they are crammed into cages and trucked to slaughter.」
　「Birds exploited for their eggs, called 'laying hens' by the industry, are crammed together in wire cages where they don't even have enough room to spread their wings. Because the hens are crammed so closely together, these normally clean animals are forced to urinate and defecate on one another. The birds have part of their sensitive beaks cut off so that they won't peck each other out of frustration created by the unnatural confinement. After their bodies are exhausted and their production drops, they are shipped to slaughter, generally to be turned into chicken soup or cat or dog food because their flesh is too bruised and battered to be used for much else.」
　「Because the male chicks of egg-laying breeder hens are unable to lay eggs and are not bred to produce excessive flesh for the meat industry, they are killed. Every year, more than 100 million of these young birds are ground up alive or tossed into bags to suffocate.」
　「Chickens are slammed into small crates and trucked to the slaughterhouse through all weather extremes. Hundreds of millions suffer broken wings and legs from rough handling, and millions die from the stress of the journey.」
　「At the slaughterhouse, their legs are forced into shackles, their throats are cut, and they are immersed in scalding-hot water to remove their feathers. Because they have no federal legal protection (birds are exempt from the Humane Methods of Slaughter Act), almost all chickens are still conscious when their throats are cut, and many are literally scalded to death in the feather-removal tanks after missing the throat cutter.」
　　[　https://www.peta.org/issues/animals-used-for-food/factory-farming/chickens/ 2014-09-29　]　

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: (emperor of Xia dynasty); cruel
Unihan extended: chicken roost; ancient emperor
EDRDG: measuring box