noun
crotch; groin; inner thigh area
Refers to the area between the legs, including the crotch, groin, and inner thighs. Often used in contexts of straddling or sitting with legs apart.
自転車に乗ると股ぐらが痛くなる。
My crotch gets sore when I ride a bicycle.
彼は股ぐらを広げて座っていた。
He was sitting with his legs spread wide.
股 (また) is a more general term for the crotch or fork of the legs, while 股ぐら (またぐら) specifically emphasizes the area between the thighs, often with a nuance of straddling or the inner thigh region.
Compound of 股 (また, 'crotch, thigh') and ぐら, possibly related to 座 (くら, 'seat') or a mimetic element indicating a straddled space. The exact derivation of ぐら is uncertain.