A shrimp tie (also known as an Ebi or Kuri) is a type of Shibaribondage originally used as a torture technique. A chest harness of rope is tied to a person, their arms are boundbehind their back and tied to the chest harness, legs are set with their knees wide apart and tied to the harness as well. This forces the back to lean forward which resembles the curve body of a shrimp.
