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1.
Used in conjuction with City of Heroes/City of Villans MMORPG's. The debt fairy is a mythical creature that listens for phrases similar to 'Yay, no more debt'
(Lost experience points in City of ...);
at this point it magically changes the next encounter to one where you will die instantly; thus accumulating more debt.

There have been no confirmed sightings of these creatures, but most players know they exist.
Plant Thing : Finally, that debts gone.
Plant Thing : ARRRRRRRGHHH!
Bromide : Problems?
Plant Thing : Bloody Debt Fairies!
by Silver Weasel April 06, 2006