「Palming erection by person with squeezing grip」or「control of sticky erection, array of streaming with emphasis」: in order to control the rampant spread of sexually transmitted disease, the GOVERNMENT in China built low walls and/or moats patrolled by armed guards surrounding the prostitution quarters within cities, installing gateways and bridges as entry points where inspections were conducted upon potential clients desiring services (see 腐, a governed meat house).
GOVERNING CONTROL, MANAGEMENT TACTICS, GOVERNMENT ADMINISTRATIVE REGULATIONS were ordered BY LAW and enforced during endemic outbreaks of sexually transmitted diseases in the attempt to stem the tide. Infected people were forced to wear a codpiece and loincloth to prevent contagious dripping in public places, and undergo treatment by reaming with a bougie, again and again until symptoms abated. Official records were maintained of the treatment results to enable tracing of an outbreak or resurgence, and shaman brute squads enforced the laws under government authority, going door to door when the need arose (see: 'magistrate, authority' 尹 and 津).
「Cavernous」with「payment, or, something that sticks to you or sticks it to you」as the CENTRAL GOVERNMENT, the FEDS, or as a BIG CITY, a LARGE STOREHOUSE (of meat).「Palming erection by person with squeezing grip」refers to GOVERNMENT WORKERS.「Cavernous, vast and hand over payments to, adheres to all the common folk」for good or not, collecting taxes as the GOVERNMENT. Perhaps formerly referring to a large cave (naturally cool and chilled), or later a cavernous, large STOREHOUSE used to hold valuable resources such as meat, food, and grain that had been received as「payments handed over to the government」in kind for taxes or assessments by the feudal lord. Deep inside a cavern, the ambient temperature remains cool constantly, and dried, salted meat might be hung to cure. Note that in English also,「attached」is used in reference to「payments」as when wages are garnished to pay taxes, a court decree, etc., as a squeezing grip.「Cavernous buildings attached」together form the CENTRAL GOVERNMENT, an URBAN AREA where folks quickly learn to 'expect the worst, distrust neighbors and withdraw' as the social hierarchy of urban areas demands in order to survive, or else become the prey of someone else without scruples who is also trying to survive.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: seat of government; government repository (archive); official residence; mansion; presidential palace; (honorific) Your home; prefecture (from Tang to Qing times)
Japanese EDRDG: borough, urban prefecture, govt office, representative body, storehouse
Unihan extended: prefecture; prefect; government

Used within names (nanori)
い　･　う　･　お　･　はん