[Elements vary by font] this glyph is a shining example of why it may be best not to use Chinese glyphs for writing any longer:「erect wild dog」or「erection sliding head of stake into soil and discharging」with the internal element as either「male, blasting shaft, vigorous discharge, rod streaming」or「long time in tension, gasping, no-longer-integrated foot」and therefore TO SUCCEED, TO ACHIEVE ONE'S PURPOSE, BE COMPLETED, DO COMPLETELY, to BECOME COMPLETE. Arguably, the integrated elements speak for themselves as to meaning.
Nevertheless, an explanation of canid dog and bitch anatomy may be necessary for some folks: anatomical features at the base of a canid dog's penile shaft force it to COMPLETE the full actions of copulation necessary to achieve fertilization, and, to be ALL IN, COMPLETELY inserted from the glans tip all the way to behind the base of the penile shaft: a「dog erect straight up in high tension for a long time and gasping」is likely to have COMPLETED his intended purpose of DOING a bitch in heat…'bitches' are female canids. Male canids, the 'dogs,' are endowed with a very special penis, unlike any other species. A dog is equipped with two glands located at the base of the shaft that engorge and harden upon erection, normally after baculum penetration into the bitch's vaginal orifice (a baculum is a bone located within the dog's penis that enables rapid insertion, i.e., spearing). These locking bulbus glandis swell large enough to prevent the penis from being extracted from the bitch's vagina for quite some time, normally ten to fifteen minutes (or up to an hour in some cases), to allow the dog's semen sufficient time to get enough of a head start toward the bitch's ova that the male might actually sire some pups, COMPLETING his mission in life, rather than the next dog waiting to mount the same bitch in heat. External element also means「fifth, five」perhaps as the dog's four legs and one boner, the bony erection, its fifth 'attacking limb, the spear' (in exactly the same manner as the Chinese referred to a human's erection as the 'third leg'). Perhaps signifying that every possible and available human orifice was accessed (including a girl's no-longer-integrated feet in China), meaning that the deed was DONE COMPLETELY…see related glyph (蕆) as 'emerging glans of dog with fleshpot.'

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: to succeed; to finish; to complete; to accomplish; to become; to turn into; to be all right; OK!; one tenth
Japanese EDRDG: turn into, become, get, grow, elapse, reach
Unihan extended: completed, finished, fixed

Used within names (nanori)
あき　･　あきら　･　しげ　･　そん　･　たえ　･　なお　･　なり　･　なる　･　のり　･　ひら　･　まさ　･　よし　･　り