「Threads with dragonfly」is a rope tied for any purpose that prevents motion, walking, escape, or entry into a restricted area, to impede motion or ward off (trap) evil, restrain criminals, catch fish, lasso animals, tie horses, leash pets, etc. A dragonfly is anatomically unable to walk or take a single step. Glyph depicts a method of tying rope around a prisoner's legs and feet that prevents escape, that is, the prisoner is HOBBLED and can take only very small steps, if any.
「Ejaculation of dragonfly」also entails CAPTURE and HOBBLING, DILIGENT GUARDING:「Dragonfly sex is a rough and tumble affair. …The male dragonfly will pull his abdomen forward and use his anal appendages, a pair of cerci, to clasp her by the neck (her prothorax). Once he has her tightly by the neck, he can extend his body and continue to fly with her, in tandem. …Dragonflies have secondary sex organs, meaning they don't store sperm near the copulatory organ. He must transfer some sperm from a gonopore on his ninth abdominal segment to his penis, which is located under his second abdominal segment. …The female's genital opening is near the tip of her abdomen, while the male's penis is closer to his thorax (on the underside of his second abdominal segment). The female must bend her abdomen forward, sometimes with coaxing from the male, to bring her genitalia into contact with his penis. …In dragonflies, the sex organs lock together briefly (not so for damselflies).」
「…Female dragonflies operate by the 'last in, first out' rule of fertilization. If given the opportunity, she might mate with multiple partners, but the sperm from her final sexual partner will fertilize her eggs, in most cases. Male dragonflies, therefore, have an incentive to make sure their sperm is the last to be deposited in her. A male dragonfly can increase his chances of fatherhood by destroying the sperm of his competitors, and he's well equipped to do so when he mates. Some dragonflies have backwards-facing hooks or barbs on their penises, which they can use to scoop out any sperm they find inside their partner before depositing their own. Other dragonflies use their penises to tamp down or move the offending sperm, pushing it aside before he places his own in the ideal location for fertilization. Still other dragonfly males will dilute any existing sperm they find. In all cases, his goal is to ensure that his sperm supersedes that of any prior partners she has had. Just to provide an added measure of security for his sperm, the male dragonfly will often guard the female until she oviposits her eggs. He tries to prevent her from mating with any other males, so his sperm is assured the 'last in' position that will make him a father. Male damselflies will often continue to grasp their partners with their cerci, refusing to let go until she oviposits. He'll even endure a dunking in the pond if she submerges to place her eggs. Many dragonflies prefer to guard their partners by simply chasing off any approaching males, even engaging in wing-to-wing combat if necessary.」
[ https://www.thoughtco.com/how-dragonflies-mate-1968255 2023-05-18 ]
Some sources claim the right element formerly perhaps was an amphibian with two bulging eyes, loose body, and a tail when immature, such as a「frog or toad」and other sources say「turtle」with a shell and tail.「Toads, frogs」do appear a bit hobbled when walking, however, which may explain in part why they most often jump, and do not bother walking. Note that the right element with a「head and neck looking up」added becomes「turtle」another animal not especially known for speed while walking.
Euphemisms such as BRAIDED, twisted CORD, MULTI-COLORED STRANDS or ROPE describe various colors of penile emissions when infected consisting of whitish semen, clear bulbourethral fluid, greenish and/or yellowish pus and gleet, red, brown, and/or black blood, and so on, often with chunky bits.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: rope
Japanese EDRDG: rope, cord
Unihan extended: rope, string, cord; measure, restrain