「Rock with pawn, recent graduate」as something that has been no-longer-integrated,「testicles with comfort woman」as what SMASHES against her repeatedly. Left element of「rocks, handling orifice.」Right elements of「palming」with「following submissively, passing through a gap, to obey, to engage in actions, joining in, an accessory」and「filled, screwing, plugging」that all together describe an apprentice who is now graduating and being placed into service with no-longer-integrated FEET, that most famous of Chinese things that were no-longer-integrated, used by clients to 'play' with.
　「Viewing women as commodities…, 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…, with the ideal length, called the 'Golden Lotus,' being about 7 cm (2.75 inches) long. …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　]　
　As「rock with pawn」perhaps the military budget was underfunded and spears were in short supply that year, or using a rock was just more fun as a way of dealing with the vanquished…imagine how the guys at the end of the line were feeling. CRUSHING the hard outer shell as if BREAKING DOWN INTO FRAGMENTS. Japanese version uses right element of「rock with spurting in screwing rotation」(砕).
　Military use of comfort women was not a Japanese invention, formerly…everyone did it: pirates, bandits, gangs, armies the world over…because they could. Then there is God Almighty's take on this matter, found in Deuteronomy 21:10 When you go to war…and you take captives, 11 if you notice among the captives a beautiful woman and are attracted to her, you may take her as your wife. 12 Bring her into your home…then you may go to her and be her husband and she shall be your wife. 14 If you are not pleased with her, let her go wherever she wishes. You must not sell her or treat her as a slave, since you have dishonored her. See this researcher's website blog and well-documented published material to learn about the relationship between Japan and Korea prior to WWII, who it was that actually recruited Korean women as army service providers (in nearly all cases), and who is behind why this issue remains a propaganda flashpoint today:
　「I first confronted the comfort women issue in 1991. It was near the end of my study in Japan. As a volunteer I was translating former Korean comfort women's testimonies for NHK. When I returned to South Korea, the nationalism was out of control. The anti-Japanese activist group 'Korean Council for the Women Drafted for Military Sexual Slavery' (also known as Chong Dae Hyup 정대협 挺対協) was formed by the South Korean communists. Its leader said publicly it was determined to defame Japan for the next 200 years. Its propaganda turned me off, so I stayed away from this issue for years. I regained my interest in this issue in the early 2000s when I heard that Chong Dae Hyup was confining surviving women in a nursing home called House of Nanumu. The only time these women were allowed to talk to outsiders was when Chong Dae Hyup needed them to testify for the UN Special Rapporteur or the U.S. politicians. But for some reason I was allowed to talk to them one day in 2003. I could sense that women were not happy being confined in this place. One of the women (Bae Chun-hee) told me she reminisced the romance she had with a Japanese soldier. She said she hated her father who sold her. She also told me that women there didn't appreciate being coached by Chong Dae Hyup to give false testimonies but had to obey Chong Dae Hyup's order. When Japan offered compensation through Asian Women's Fund in 1995, 61 former Korean comfort women defied Chong Dae Hyup's order and accepted compensation. Those 61 women were vilified as traitors. Their names and addresses were published in newspapers as prostitutes, and they had to live the rest of their lives in disgrace. So the rest of the women were terrified of Chong Dae Hyup and wouldn't dare to defy again. Chong Dae Hyup (some of its members were arrested as North Korean spies) has used the comfort women issue for its political purpose, which is to drive a wedge into U.S.-Japan-South Korea security partnership.」
　　[　https://scholarsinenglish.blogspot.jp/2014/10/summary-of-professor-park-yuhas-book.html 2017-08-03　]
　Or, do you believe the North Koreans?　

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 break down; to break into pieces; fragmentary
Unihan extended: break, smash; broken, busted
EDRDG: break; smash; broken; busted