the crotch of a pair of trousers; the place where the two legs of pants meet

the area of the body or clothing where the legs join

Pants with an opening at the crotch or seat, typically worn by infants and toddlers to allow for easy elimination.

A child's pants with no slit in the seat; the opposite of [[开裆裤|開襠褲|kai1 dang1 ku4]]

The area where the two legs meet at the bottom of the torso

To band together or collaborate, often in a secretive or dishonest way; to be in cahoots.

loose-fitting pants with a low crotch; sagging pants

To wear open-crotch pants; used metaphorically to mock someone as being childish or ignorant.

crotch of a pair of pants

(bound form) a collarless and sleeveless vest worn in ancient China, especially during the Han and Wei dynasties; later known as a [[背心|背心|bei4 xin1]]