noun, noun which may take the genitive case particle 'no'
bowlegs; bandy legs
Colloquial term for legs that curve outward, resembling a crab's stance. Often used in casual or descriptive contexts.
彼はがに股で歩く癖がある。
He has a habit of walking with his legs bowed outward.
がに股の人は、膝に負担がかかりやすい。
People with bowlegs tend to put strain on their knees.
The word がに股 is composed of がに (mimetic for a crab-like sideways walk, from 蟹 'crab') and 股 'crotch, thigh'. The exact derivation of がに is uncertain, but it is clearly associated with the image of a crab's legs.