Formerly perhaps「horse」with「biting fleas, lice, pubic crabs」in its「crotch.」Modern elements taken separately also make sense, since horses have a great natural fear of snakes (for a very good reason, since horses cannot walk if bitten) so a「snake before a horse crotch」(its legs) will cause a CLAMOR, BOISTEROUS disturbance indeed. Biting fleas in an animal's crotch would also cause the horse to be AGITATED, cause a DISTURBANCE, be NOISY but the owner may not understand why (fleas are generally small).
　
　「Leather seat, saddle straps, crupper with snake rod in orifice loose dripping stink larvae」intimates a bondage scene, and in this case one not fully consensual.
　Note that this glyph also means LEWD or EROTIC as a male with a horse-like penis who「constantly masturbates (see 馬), a crotch insect, snake」and might be obsessed with crotches, as are pubic crabs. Also means「stinking or smelling like a horse crotch, vulva and cock」for much of the same reasons, or perhaps「snake in crotch as large as a horse cock」or,…so it goes on and on.
　Without a doubt, the Irish also have knowledge of their own to pass along in these trying times:「Masturbation will not spread coronavirus, especially if you wash your hands (and any sex toys) with soap and water for at least 20 seconds before and after.」Nonetheless and regrettably, unlike in dynastic China, it must be undertaken alone to truly be a preventative countermeasure but still achieve the desired result with some degree of safety.
　 　[　https://www.sexualwellbeing.ie/sexual-health/sex-and-coronavirus/ 2020-03-31　]　
　The Dutch, too have the same solution—it seems masturbation has become mainstream in the media the world over due to the coronavirus (it has always been 'the main stream' in reality, albeit covertly for most folks):
　「'Don't have sex with your partner if they have been isolated because of (suspected) coronavirus infection,' the RVIM says. 'Sex with yourself or with others at a distance is possible (think of telling erotic stories, masturbating together).'」
　　[　https://www.theguardian.com/world/2020/may/15/dutch-official-advice-to-single-people-find-a-sex-buddy-for-lockdown-coronavirus 2020-05-16　]　
　Needless to point out perhaps, but Chinese shamans from antiquity hit upon the same solution as a pandemic preventative countermeasure, honed for ultimate client satisfaction by utilizing naked females with no-longer-integrated feet as masturbatory sex buddies available for short-term rental with erotic visualization of live prepubescent female genitalia engaging in autoerotic stimulation herself, as a solution to the same problem facing us now, but in pre-Internet days.

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: Japanese variant of 騷|骚
Japanese: uproar, disturbance, to make noise, to make racket, to be noisy, to rustle, to swoosh, to make merry, to clamor, to clamour, to make a fuss, to kick up a fuss, to lose one's cool, to panic, to act flustered, to feel tense, to be uneasy, to be excited, to annoy, to cause trouble, stir, commotion, to be astir, to murmur, boisterous, turbulent, troubled, to disturb, to alarm, to agitate, to cause anxiety, to trouble, to be made much of, to be lionized, to be sought after
Unihan extended: harass, bother, annoy, disturb
EDRDG: boisterous; make noise; clamor; disturb; excite