Meaning STICKY, and SPECIAL TECHNIQUE, MAGIC that may be referring to actions with warnings of 'don't try this at home.' Elements are「screwing motion copulating」and a marker stroke above. Or possibly, an「herbal」plant with roots that are often shaped in a form that resembles a naked human being with twisted bent legs that look like a hanged man, or crossed fingers, most likely the MANDRAKE, since mandrakes are rumored to have enormous MAGICAL powers of their own such as, screaming when pulled from the ground and wanting to remain ADHERED to soil in the worst possible way with a squeezing grip, even to the point of killing the person or animal that pulls it from the ground (with its magic, so fear not…perhaps).
Mandrakes are rumored to grow only where the STICKY, GOOEY jism (ejaculated semen) of a hanged man drips onto the soil, so you know they mean magically STICKY, ADHERING. Seems related to the「magic」of hanging oneself naked and twisting during autoerotic asphyxiation techniques to enhance orgasmic pleasure, also called asphyxiophilia, autoerotic asphyxia, or hypoxyphilia of the gaspers that clearly has become the epitome of autoerotic SPECIAL TECHNIQUE, practiced in the ancient Orient.
Mandrakes can also purportedly bestow magical powers to others…this toxic plant famous as an aphrodisiac can cause hallucinations and death, and so can autoerotic asphyxiation. There are just too many stories associated with the magic of mandrakes to relate here. Suffice to say that the plant means SPECIAL POWERS of ADHERENCE, MAGICAL TECHNIQUES, ARTISTRY OF WIZARDS AND WITCHES (all hallmarks of the「true science」of the past).
Alternatively, this plant is the mayapple that contains lignans (especially podophyllotoxin), flavonoids, resin, and gums (this also is some sticky stuff).
「Observers at public hangings noted male victims developed an erection, sometimes remaining after death, and occasionally ejaculated when being hanged. Note that, however, ejaculation [also] occurs in hanging victims after death because of disseminated muscle relaxation. This is a different mechanism from that sought by autoerotic asphyxiation practitioners.」
[ https://en.wikipedia.org/wiki/Erotic_asphyxiation 2011-01-20 ]
Death by hanging is「twisting, dangling bent legs, walking no more」and「twisting while copulating」in the air, it seems.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: variant of 術|术
Japanese EDRDG: a type of millet, a type of herb
Unihan extended: skill, art; method; trick, device