Glyph is sometimes replaced by element meaning 'uncouth, untrained, barbarian savage' (夷) to describe one's YOUNGER BROTHER as someone still learning how to behave, or just plain berserk. A STUDENT is someone eager to study, and「study」is the aggressive use of one's stud「to push, stick in, knock on, to beat.」Glyph also uses virtually the same elements as 弗 although modified somewhat, with the「erection」shorter (the younger brother's?) and「emissions」on the long rod (the elder brother's?). 弗 means 'do not' as in do not share or immediately follow after another client who used the「arch」of a no-longer-integrated foot, without a through cleansing first. Perhaps in the subject glyph, that short erection is watching from the side, learning as a STUDENT DISCIPLE, the younger of two brothers brothing as a brothel. It is no coincidence that the English root word「broth」meaning fluids in which meat has been heated, cooked and fired, is used to describe「someone who broths」as a brother and a「house for brothing」as a brothel, also a place where youths provide services to elders—and in China,「head of rod in reciprocating motions inside arch of no-longer-integrated foot with emissions spurting from tip of rod」describes a Chinese sex parlor filled with young female service providers.
「Emit sympathy, sharing and understanding the feelings or ideas of another, with head sliding down」depicts the abject posture of a STUDENT, DISCIPLE and perhaps what is expected of a YOUNGER BROTHER or anyone in SERVICE TO ELDERS, suggestive of someone bowing in submission to an elder.
「Emit mourning, sharing and understanding the feelings in the death of another, with head sliding」depicts a「mourning」posture, suggesting that the elders normally die before younger folk.
「Emissions side-to-side and tension for a long time gasping with rod head sliding down」is also suggestive of a YOUNG PERSON still in training, a STUDENT or a DISCIPLE learning from a master, a YOUNGER BROTHER being coached by an elder brother with regard to coital or other techniques with the arch of a no-longer-integrated foot, or two:「head sliding in arches and crotch of slave girl.」
SERVICING AN ELDER…many「side actions with sliding down head」seem to be errors of a 'greenhorn' as an animal with a green, young horn, unable to copulate successfully or just plain infected. Nowadays not many animals possess a single horn: unicorns seem to have died out, narwhals are equipped a long tooth and not a horn, and rhinoceros snouts are composed of compacted hair-like keratin and not bone, so perhaps that leaves only human males as greenhorn STUDENTS normally part of the younger human set with boners:「spurting emissions from rod in reciprocal motion within those golden arches [of very young no-longer-integrated feet providing services to elders] and sliding head」as it sometimes missed the mark, being an uncouth, untrained, barbarian savage.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: variant of 悌; younger brother; junior male; I (modest word in letter)
Japanese EDRDG: younger brother, faithful service to elders
Unihan extended: young brother; junior; i, me

Used within names (nanori)
て