Do you know these words?

• かたひじたち

  to get up onto one's elbow

• かたむける

  to slant ; to tilt ; to incline

• こしを　あげる

  to raise one's rear end ; to raise one's lower back

• しりもちを　つく

  to fall on one's buttocks

• しゃがむ

  to crouch