Suggestion of「standing grain plants, or, raw grains in tonguing mouth」frankly depicts nothing good for human beings, since the straw stems, hulls, rachis, roots and dirt clods have the tendency to cut up the insides of cheeks and stab the roof of the mouth, not to mention being relatively indigestible although excellent roughage, and grains are extremely hard while raw…growing grain has little odor prior to being harvested and roasted, and eating it does not cause slurping sounds, generally.
Like it or not, alternative explanations must be considered for this glyph:「seeds at tip of stiff stem, hollow shaft」and「tonguing mouth」make the most sense here as licking ejaculated jism from a glans, with SLURPING SOUNDS WHILE RELISHING the experience (or,「having a reason to do so by pretending」to relish it—most service providers are cunning and clever).
「Repeatedly bobbing on head with gonorrhea」will likely be ODORIFEROUS with SLURPING SOUNDS WHILE RELISHING the experience (or,「having a reason to do so by pretending」to relish it) as part of the job description.
Soundly sleeping, or the sounds of sleeping as if snoring when deeply sleeping.「Repeatedly bobbing head with having a reason to do so by pretending」to fall asleep whilst fellating the SAVORY and APPETIZING taste of testosterone, the AROMA and obvious SCENT in the nostrils of the licker and in every breath exhaled, a scent that cannot be ignored: a YUMMY SMELL, or so thought the Chinese.
「Repeatedly bobbing head with anilingus」as ODORIFEROUS (that means directly licking an anus, for pleasure of one or both of the participants, or perhaps to supply a lack of salt in one's diet as do porcupines and swine)…with SLURPING SOUNDS WHILE RELISHING the experience (or,「having a reason to do so by pretending」to relish it, although some folks quite enjoy doing it). Pickles are made by steeping cucumbers, eggplants, radishes and other fruits or vegetables in salty fluids, and fecal matter is quite salty.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: fragrant; sweet smelling; aromatic; savory or appetizing; (to eat) with relish; (of sleep) sound; perfume or spice; joss or incense stick
Japanese EDRDG: incense, smell, perfume
Unihan extended: fragrant, sweet smelling, incense

Used within names (nanori)
こ　･　こお　･　ひゃん　･　よし