leg

See:

an arm and a leg be on its last legs be on your last legs Break a leg! can talk the hind leg(s) off a donkey can talk the legs off an iron pot cost (someone) an arm and a leg get a/your foot in the door get a leg up

get your leg over get your sea legs give someone a leg up not have a leg to stand on have a leg up on someone have legs a leg up (on someone/something) not have a leg to stand on on its last legs

pull someone's leg Pull the other leg/one (it's got bells on)! your sea legs Shake a leg! Show a leg! stretch your legs your tail between your legs with your tail between your legs