Knocks an opponent backwards.
References from the canon
- On Duelling Club list on Pottermore (Pm)
- The adult Draco Malfoy uses this spell during his duel with Harry Potter (CC2.13).
- Also present in many video games
probably a pun about flipping your opponent backwards onto their rear end
Possibly used by Remus Lupin on Harry after they quarreled at Grimmauld Place. There was a loud bang, and Harry felt as if he had been "punched" backwards into the wall (DH11). Identical to the unknown jinx Snape used to push Harry to the ground as he fled after the Battle of the Tower, which also made a loud BANG! (HBP28).