Corrupt a Wish is a forum game I've known for a long time. Basically, I make a wish, and the person below grants it. However, they give a ridiculous outcome for the wish being granted. Then, they get to make a wish!
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Example
Person 1: I wish that I had a muffin.
Person 2: Granted! But now you cannot eat anything other than muffins.
I wish I had superpowers.
Person 3: Granted! But you can't use them.
I wish I had Ice cream!
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And so forth. It's very easy and fun for all. You can make your wishes and grants as outrageous as you want, but the board rules still apply. Keep things appropriate and civil!
I'll start~
I wish I had a free ticket to Canada!