Oldest meaning of CURTAINED CARRIAGE from the elements「fuck wagon.」Means BEING HIGH, IN HIGH SPIRITS, and extended meanings to HIGH places or things evolved from「feeling high, being in the clouds, way high on life.」Elements are「rotation again and again, revolving in a plugged orifice with downward thrusting motions of penis」that depicts not just repeatedly schtupping (ejaculation into a birth canal or other attainable orifice) to the point of orgasm with the same person again and again that is not physically possible for the male (generally) due to the inability to overcome a flaccid penis as a result of prolactin release in the brain after climaxing—yet, easily accomplished by the female—but rather,「a rotation, revolving」to a new and different, novel sexual partner for each new orgasm, highly possible for the male with six or so new subjects in one session (the Chinese Dragon Emperor soon discovered with his harem of concubines), as the effects of prolactin that normally causes flaccidity are counteracted immediately by the release of additional dopamine at the sight of another different and sexually willing, aroused female, experiencing repeated doses of released dopamine rushes, known as the Coolidge Effect.
　HIGH-SPIRITED is the main Chinese usage, but the high places by a rooftop (EAVES) leading to the meaning a COUNTER FOR HOUSES, is the main meaning that remains in Japanese, who are apparently a bit more staid than the Chinese, generally. Scholars say this glyph depicted the concept of a cover or canopy used to keep a cart dry similar to a covered wagon with the right element as the shape of the supporting frame, and conveys a defense against arrows, and the Sun, wind, and rain, and that this same concept applies to a roof, seen from underneath and outside as the eaves (…sure it does).

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: pavilion with a view; high; tall; high fronted, curtained carriage (old)
Japanese: counter for buildings, suffix for a pen name, stage name, etc., eaves, narrow aisle surrounding the core of a temple building
Unihan extended: carriage; high; wide; balcony of the Yellow Emperor
EDRDG: flats; counter for houses; eaves