逆エビ固め
The Boston crab is a professional wrestling hold that typically starts with one wrestler lying in a supine position on the mat, with the other wrestler standing and facing them. It is a type of spinal lock where the wrestler hooks each of the opponent’s legs in one of their arms and then turns the opponent face-down, stepping over them in the process. The final position has the wrestler in a semi-sitting position and facing away from the opponent, with the opponent’s back and legs bent back toward their head. The original name for the maneuver was the "Backbreaker", before that term became known for its current usage. In modern wrestling, the Boston crab is not treated as a lethal submission maneuver, even though it was considered a match-ending hold in the past.