「Tonguing mouth, rod in mouth」with「biting, mattock」and「person who must remain sitting most of the time.」…a「mattock」is used to「chew up, break into large chunks」some soil prior to sowing seeds in it, with much of the same shape and motion as teeth biting into meat. Meaning that someone is USING TEETH DIRECTLY ON MEAT, and CHEWING or GNAWING it, rather BLUNTLY as if TOUGH and CHEWY…canines chew meat and bone in this manner. Decidedly NOT the「good」radical despite given external meanings. Not many items that are blunt, tough, or chewy can be considered good: significantly, there is very little difference between「goods, capable of being sold」(良) and「clenching, chewing」(艮), just a fine line or small emphasis marker, with some modern fonts merging「open tonguing mouth, conspicuous, white, blankly staring in a stupor」(白) with clenching, a combination that makes little sense. And in real life, too, considering how much trust one must place in another person when placing one's delicate-zone meat into a mouth having a full set of teeth, crossing that fine line of danger and placing the emphasis upon the open tonguing mouth, not the chewing teeth. One can quickly be decapitated, become headless. First sell the ones who bite, keep the others if one is able.
　「rod in orifice on raised leg of service provider」describes one of the primary reasons why the ancient Chinese hit upon the idea of dis-integrating feet: avoiding vengeful teeth.
　CLENCHING and related problems and fears are present in these glyphs:
　歯 and 齒 as teeth.
　恨 regret, hate, resentment, rueful, hold a grudge, malice, bitter feeling, rancor, to curse and swear.
　艮 chewing.
　仡 being fed up with conditions and bravely doing something about it while unafraid of the consequences.
　旡 suddenly choking on something in one's throat.
　兂 clasped with teeth.
　邪 wickedly demonic.
　拑 pinning with clenched teeth.
　音 loud noise.
　既 and 既 too late, happened already, unchangeable.
　茱 and 萸 bloody stump, dogwood.
　飢 ravenously chomping meat.
　啗 enticing lure, gnawing meat.
　啖 threaten a superior, taunt and torment, reckless endangerment while tasting and eating.
　猖 ferocious and insane, mad, reckless, not following the rules.
　惕 healthy respect of danger.
　𣇄 and 晣 biting off a chunk, bent by tonguing mouth.
　惮 and 憚 fear, dread, shirking, shrunk.
　喫 clenching with gasps.
　吃 and 喫 extirpate, destroy utterly.
　揕 bare-fisted jab, punch in the face.
　意 long in thought, intent, concerns.
　貇 tenaciously clenching jaw and not letting go.
　虞 horror, terror, terrorism.
　鉗 clamp and gag.
　𪗱 and 齟 discord, broken teeth.
　𪘚 and 齬 gritting one's teeth, great hatred.
　齭 pain caused by teeth.

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: one of the Eight Trigrams 八卦, symbolizing mountain; ☶; blunt; tough; chewy
Japanese: northeast, gen
Unihan extended: seventh of eight diagrams
EDRDG: northeast (Oriental zodiac); stopping; good radical (no. 138)