[See also variant 丌]「Pedestal with bent legs」or「rod in horizontal reciprocating motion」set of lame, stumbling legs to depict UNABLE TO WALK PROPERLY being UNSTABLE, UNBALANCED and easily falls over, TIPSY. (Who would use a pedestal with bent legs?) Used to describe one of the traditional punishments of「cutting off a person's feet.」「Wide on lame legs」as TOP-HEAVY, or VERY HIGH AND LOFTY. To be sure, permitting an unstable situation with the center of gravity too high to maintain proper balance does indicate at least a modicum of STUPIDITY.
Of course, as an「array of copulation」all the same meanings may be derived, including: being unable to walk while doing so, feeling very high and lofty, and as an exhibition of stupid, often risky behavior. BALD is a direct reference to the head that never has hair, one's glans, in addition to a hen's backside:「array of copulations, unstable stance」as a rooster might be inclined to do with a yard full of hens. The manner in which chickens copulate is normally with the rooster hopping on top of the hen's hind end in an「unstable stance」as the hen often runs around some during copulation, and the cock may literally fall off her ass at which time copulation ceases temporarily. (Note that chickens are equipped with a cloaca, an orifice that serves both for copulation and defecation, although not simultaneously as is the case at times among human beings.) Furthermore, the cock's hens often have BALD SPOTS on each side of the tail where the cock's feet and constant mounting to copulate have caused all the feathers to be pulled from the skin.
「Rod with copulation」refers to CUT FEET as the no-longer-integrated and pulverized bones within the feet of dynastic Chinese fuck bunnies unable to run away or escape life as a sex slave. Moreover, as depicted in erotic Chinese art, men in dynastic China masturbated by wrapping no-longer-integrated feet around an erect penis ostensibly to lower the risk of contracting a sexually transmissible disease or infection when performing coitus within some sort of mucous membrane system of the female:「Bound feet were once considered intensely erotic in Chinese culture. …The process was started before the arch of the foot had a chance to develop fully, usually between the ages of 2 and 5. …Qing Dynasty sex manuals listed 48 different ways of playing with women's [no-longer-integrated] bound feet」(after removing the binding cloths, of course)
[ https://en.wikipedia.org/wiki/Foot_binding 2012-12-17 ]

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: cut off the feet; rising to a height; towering; bald
Japanese EDRDG: high and level, lofty, bald, dangerous
Unihan extended: to cut off the feet