「Correct performance by praiseworthy egotistical me」adhering to something IN PRINCIPLE, to JUSTICE and RIGHTEOUSNESS, a SYSTEM OF DOCTRINES AND IDEOLOGY, a set of PRINCIPLES, true MORALITY.
Meaning of IN-LAW relationships stems from an「in legal principles」relative rather than blood-kin, such as one's mother-in-law.
Alternatively,「swinging an erect dog penis with repeated streams」indicates successful copulation with bitches, a source of personal egotistic pride for both dogs and human males as their TRUE MEANING of life, SYSTEM OF DOCTRINES AND IDEOLOGY, a set of PRINCIPLES, actual MORALITY. Note that elements are a「self-righteous me」assuming the「correct performance position」(that is literally being「lined up behind sheep」)…perhaps ovine zooerastia was considered so wonderfully and morally right because no little girls, or little boys, circle jerking, or swine were involved, and ewe never complained in a manner that was comprehendible.
「My tasseled lance properly inserted in sheep」may simply be the ancient Chinese unrepressed and honest recognition of the fact that the human male must somehow ejaculate periodically (blame successful natural selection, if you must blame), and humans tupping ewes was the least intrusive and least harmful to other human beings, yet sufficiently satisfying to make the practice「the proper performance procedure」of a morally upright man, recommendable and praiseworthy…it just seems incredible today, that's all. At the time, nobody guessed that particular praiseworthy and respectable morality would spread syphilis like wildfire through the human population. Why someone might refer to the IN-LAWS as「self-righteous anal-raping sheep tuppers」needs no explanation, for the most part.
「Sheep, spurting with repeatedly bobbing dog lance」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 ]

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: justice; righteousness; meaning
Japanese EDRDG: righteousness, justice, morality, honor, loyalty, meaning
Unihan extended: right conduct, righteousness

Used within names (nanori)
ただし　･　ちか　･　のり　･　よし