Noun

1. In some fairy tales, a benevolent magical female creature who champions the cause of the protagonist offers him or her magical assistance.

   I thought it was clever the director cast the same woman to play both the Wicked Witch and Prince Charming's fairy godmother.

2. Any generous benefactor.
   • 2007, Choderlos de Laclos, Dangerous Liaisons, tr. Helen Constantine, Penguin 2007, p. 195:

     How lucky you are to have me for a friend! I am a fairy godmother to you!