Corrupt a wish

[Dark_Pixie]

Granted, you get your wish. But seeing as you have wished for a wish, you have used up your wish and at the same time you have gained a wish. So you wished your wish away, gained a wish that you can't wish, and now you have an unwishable wish. So you corrupted your own wish.

I wish for a maggot.

[Iron Anvil]

granted and a maggot is already gross and corrupted so i see no need to corrupt it further

I wish flies did not exist