「Female and leek」purportedly meaning SLENDER, CUNNING, SHARP-TIPPED likely refers to the shapes and appearance of her no-longer-integrated bound feet (searching for those images should satisfy the curious. This site does not provide graphic imagery). Often, the only appendage remaining on a no-longer-integrated foot was the「big」toe, creating a SLENDER, CUNNING, SHARP-TIPPED shape.
FOOT BINDING was:
「…[T]he custom of applying painfully tight binding to the feet of young girls to prevent further growth. …To enable the size of the feet to be reduced, the toes on each foot were curled under, then pressed with great force downwards and squeezed into the sole of the foot until the toes broke. The broken toes were held tightly against the sole of the foot while the foot was then drawn down straight with the leg and the arch forcibly broken. The bandages were repeatedly wound in a figure-eight movement, starting at the inside of the foot at the instep, then carried over the toes, under the foot, and around the heel, the freshly broken toes being pressed tightly into the sole of the foot. At each pass around the foot, the binding cloth was tightened, pulling the ball of the foot and the heel together, causing the broken foot to fold at the arch, and pressing the toes underneath. …The tightness of the binding meant that the circulation in the feet was faulty, and the circulation to the toes was almost cut off, so any injuries to the toes were unlikely to heal and were likely to gradually worsen and lead to infected toes and rotting flesh. If the infection in the feet and toes entered the bones, it could cause them to soften, which could result in toes dropping off. Although, this was seen as a benefit because the feet could then be bound even more tightly. Girls whose toes were more fleshy would sometimes have shards of glass or pieces of broken tiles inserted within the binding next to her feet and between her toes to cause injury and introduce infection deliberately. Disease inevitably followed infection, meaning that death from septic shock could result from foot-binding, and a surviving girl was more at risk for medical problems as she grew older.」
[ 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: cunning; slender
Japanese EDRDG: delicate
Unihan extended: slender, thin; sharp-pointed