「Bending on demand」and then straightening describes the actions of a JOINT, KNUCKLE.「Bamboo and conform to, agreement」: inside bamboo that is naturally a hollow structure are sections that are sealed by NODES, or JOINTS, each approximately the same size and length of other adjacent sections. Therefore, the node serves to make each section「agree with and conform to」the others, and to stop「at once」any flow of water if used as piping, for example. Other extended meanings are to things conforming (such as, to the same length), or being CONTROLLED AND MODERATED: seasons (each the same length of three months), rope knots used to measure a ship's speed, verses in a poem or song, (roughly) paragraphs or bullet points in text, and so on. Another interpretation from Chinese is「bamboo that causes immediate conforming and agreement」due to the threat or actual whacking of someone's KNUCKLES, NODES, or JOINTS with a SECTION OF BAMBOO.
　「Bowing down in lordosis position and conform to, agreement, on demand」: INTEGRITY refers to wholeness and being well-connected throughout, a sound structure with no weak points and「agreement」of all the connected parts at the places of joining. MORAL INTEGRITY refers to the sound judgement of right and wrong, good and evil. Both 癤 and 痘 depict the Pox, a vernacular term used to describe corkscrew demons, or syphilis. As having an「illness of moral integrity」and「the bean disease」respectively, these glyphs all combine as the bean-throwing, demon-exorcism ceremony (禓) of Setsubun (節分) held on the Eve of Spring every year to rid the world of sexually transmissible diseases prior to the start of the spring mating season. Apparently this ceremony was not simply the superstitious exorcism of the demons causing some mysterious plague of the Pox (i.e., syphilis) as is commonly believed today, but instead, it was a yearly opportunity to educate youth and remind adults about the「understanding of moral integrity of connections」another way to read Setsubun (節分), by casting the bean-like pustules caused by the Pox out of one's life, and upholding one's moral integrity.
　「Setsubun (節分, Bean-Throwing Festival or Bean-Throwing Ceremony) is the day before the beginning of Spring in Japan. The name literally means 'seasonal division,' but usually the term refers to the Spring Setsubun, properly called Risshun (立春) celebrated yearly on February 3 as part of the Spring Festival (春祭 haru matsuri). In its association with the Lunar New Year, Spring Setsubun can be and was previously thought of as a sort of New Year's Eve, and so was accompanied by a special ritual to cleanse away all the evil of the former year and drive away disease-bringing evil spirits for the year to come. This special ritual is called mamemaki (豆撒き)…[literally「talented dispersal scattering pox beans.」…see related glyph 痘 as the 'bean disease']. Setsubun has its origins in tsuina (追儺), a Chinese custom introduced to Japan in the eighth century.」
　　[　https://en.wikipedia.org/wiki/Setsubun 2013-08-03, emphasis ours　]　
　…the two tsuina (追儺) glyphs refer literally to「pursuing genitals of person for condemnation」or「in pursuit of assholes [or perhaps] two orifices connected by a perineum, persons in distressed courtship displays」in the attempt to rid the local population of folks spreading disease by others who didn't want to contract the Pox 痘, also known as syphilis or「that bean disease」perhaps since pustules resemble beans under the skin, and was correctly thought to be spread by female sexual services providers working in the brothels. Today, all this history has been forgotten in Japan, and most folks have no idea why they「throw beans to exorcise corkscrew demons.」

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: festival; holiday; node; joint; section; segment; part; to economize; to save; to abridge; moral integrity; classifier for segments, e.g. lessons, train wagons, biblical verses; see 節骨眼|节骨眼
Japanese: occasion, time, section, paragraph, verse, stanza, passage, principle, integrity, node, clause, knot, joint, knuckle, tune, melody, node in a bamboo stem, part, notable characteristic, characteristic way of speaking, space between two nodes, joints, points, to be moderate of, to save, to curtail
Unihan extended: knot, node, joint; section
EDRDG: node; season; period; occasion; verse; clause; stanza; honor; joint; knuckle; knob; knot; tune; melody

Used within names (nanori)
たかし