WordNet
bad fairy
n. a fairy that tends to cause harm
Usage examples of "bad fairy".
It wasn't that he was a bad fairy, it was simply that he wasn't accustomed to helping other people.
After the third quarter of the moon, however, the bad fairy thought she might be at ease about the affair for a fortnight at least, for there was no chance of the prince wishing to kiss the princess during that period.
If so, she wouldn't be a bad fairy godmother, because that's just a good fairy godmother seen from a different viewpoint.
Not the mad, shrill laughter of the bad fairy who's been defeated, but the rather pleasant laughter of someone who's just seen the joke.
Then, just as the Lilac Fairy was about to present her gift, the bad fairy, Carabosse, appeared in a coach drawn by four giant rats.