Backbreaker drop is a type of Backbreaker.
A backbreaker move in which a wrestler lifts an opponent up into a backbreaker submission hold before dropping down to a sitting or kneeling position while maintaining the hold, thus jarring the back of the opponent by driving the opponent's spine into the attacking wrestler's shoulder. This submission hold was made popular by former WCW and TNA wrestler Lex Luger, which he called the Torture Rack.
Another variation is the double underhook backbreaker drop which sees the attacking wrestler first face a bent over opponent and hook both of the opponent's arms with their own arms before then flipping the opponent up and over so the opponent's back is resting on the wrestler's shoulder, with the opponent's head pointing in the direction that the wrestler is facing. The attacking wrestler then drops to a kneeling or sitting position while maintaining the hold, thus jarring the back of the victim by driving the victim's spine into the attacker's shoulder.