In most of Canada, they're called "GratiFries," while in French-speaking Quebec, they're called MagniFrites, a play on the French word magnifique.
While "gratify" and "satisfy" are similar words, I've pointed out before that "Satisfries" sounds a lot like "saddest fries." Not what Burger King was going for I don't think.
If you happen to live in Canada, Burger King is offering free sample-sized orders of GratiFries on Fridays from 12pm to 2pm at participating locations through November 1.
