開脚 かいきゃく Meanings Noun, する verb spreading the legs (wide apart); opening the legs Antonym: 閉脚 (へいきゃく). Kanji 開 open. Read as カイ. 脚 leg. Read as キャク. Words containing 開脚 M字開脚 (エムじかいきゃく) spreading one's legs open wide with knees bent, creating the shape of the letter M (pornographic pose) Jinuma: Japanese Dictionary · Word lists