「Loose and stinky, dripping」「small emitted sticky stream from youth」refers to a still-wet, sticky and stinky stream of freshly-ejected SILK used for constructing a cocoon as it is being spewed from the spinnerets of a silk caterpillar, still in the「youthful」larval stage prior to metamorphosis as a moth. Freshly-spewed silk is fairly stinky in fact. The process of spinning silk fibers into thread starts in a bucket of very hot water with hundreds of silk cocoons floating within. Single fibers of silk are very fine, but long, averaging 1,000 meters in length (1,100 yards, 6/10 of a mile) with one continuous fiber wound in tens of thousands of figure-eight shapes to form one silk caterpillar cocoon. The fibers consist mainly of two fluids containing proteins: fibroin which is the odorless strong core used to make silk, and sericin which is the sticky, stinky glue-like substance that holds a cocoon together and is supposed to be washed away prior to spinning the fiber into thread.
　Chinese glyphs often depict a clear analogy of bow and arrow weaponry with a client using the no-longer-integrated foot of a service provider: the inner foot arch and arched shape of the archery bow (弓「end-to-end, side-to-side with no-longer-integrated foot」) in use with an arrow (the penis 矢「head on taut thrusting shaft」) drawing back and forth nocked in a bound string (糸「stringy emissions from rod, loose and dripping with small youth」) for discharges (放「person coercion, side method for prostrated whacking」). Search for some examples of Chinese erotic art to see how it was done.
　Furthermore, see 桄 as the glyph (elements of 'woody flashing' while uncontained) used as the classifier for STRINGY THREADS…elements can refer to any sort of PENILE DISCHARGE with fluid strands twisting together in the same manner as those spewed from the spinnerets of silk caterpillars, with a boneless worm-shaped tube of meat spewing a sticky stinky whitish combination of fluids from a small hole in one end (the meatus), but particularly this element refers to SEMEN EJACULATION that is also a combination mostly of two basic fluids, sticky yellowish-white fluid containing the sperm, and clear mucus from the bulbourethral glands to provide lubrication through the urethra. Such discharges often result in, or are the result of, HUMAN CONNECTIONS of various kinds, likely a direct reference to sexual connections and possibly disease, since these elements also describe gleet as a「small emitted stream that is sticky, loose and stinky, dripping from bent and shortened.」…in this case, not often referring to older guys since those infected as youths didn't often live long enough to become old guys, and an old guy became old by being cautious while still a youth.
　The English 'spinning yarns' may related in the same manner as Chinese to telling stories, fables, and lies to explain away all the different colors in one's ejaculate…not, naturally, the politically correct explanation accepted today, however.
　Japanese adds RAW FISHY-SMELLING STUFF IN THIN STRIPS, which needs no further explanation. Refers both to silk threads spewed by caterpillar spinnerets (the meatus orifice of hairy silk 'worms' of meat with no bones) and to penile emissions (also from the meatus of hairy worm-like meat with no bones). Be sure to see 絹, 綃, and 素 for further details.
In its original parlance, describing a thing or situation as "smells fishy" did refer to having probable cause for extreme doubt and suspicion, but most folks do not realize why innocuous fish are so maligned in this manner. A fishy or pungent-smelling discharge from the vagina or penis may signify the presence of an infection, so caution was advised...and still is today.

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: fine silk
Japanese: thread, yarn, string, 0.001, one ten-thousandth, spinneret, bottom rim of cup or bowl, spool of thread, thin strips of raw fish and squid
Unihan extended: silk
EDRDG: thread