1. When the femoral region of a human remains inactive, indoors or entirely concealed for an extended period of time, making the hip and knee appear to be connected by large amounts of cloth or window drapes. Typically, this takes place during winter months, but if executed correctly, can be enjoyed year-round. Common high fashion thighbernation locations include: prairie skirts, harem pants, nursing scrubs, courtly breeches and victorian bathing costumes.
2. When a human woman's skin has become resistant to duct tape and she can no longer secure her inner thighs to her outer thighs to create a thigh dearth (commonly referred to as a "thigh gap.") The result will be human legs that support walking upright and running from predators, but will look terrible in almost all clothing that isn't specially made.
related forms: thighbernate, thibernating (verb)
I am going on vacation soon and refuse to come out of thighbernation; am I pulling off this wool sarong?