Catapult backbreaker is a type of Backbreaker.
The Catapult throw typically starts with an opponent on his/her back, and the attacking wrestler standing and facing him/her. The wrestler hooks each of the opponent's legs in one of his/her arms then falls backwards to slingshot the opponent into a turnbuckles, ladders, ropes etc. At this point the attacking wrestler will remain on the ground and raise his knees while still holding the opponent's legs. The rebounding opponent will instantly trip falling backwards onto the raised knees of the wrestler.