This one is a Harry Potter icon. In the third volume, there are dark creatures called Dementors who serve as guard of the prison of Azkaban who look like Nazgul wannabees and feed of despair and fear. Given the leave they'll even eat the Soul of a person. Anyway, the only way to protect oneself from these creatures is a spell called "Patronus" which invoque your inner mystical animal or something like that that will fight and repell the Dementors. Anyway of course at a critical point of the story, Harry needs to repell the Dementors to protect himself and his godfather who is innocent of the crime he was imprisonned for. So he casts Patronus and succeeds, and his Patronus is a stag.

Thus, Bambi pwned the dementors.

It's just a fun icon ^^