Facebook users can visit the Whopper Sacrifice to install the application, and select 10 friends they wish to remove from their friend list for a free Whopper voucher.
Usually when a friend is removed on Facebook, no announcement is made, however the Burger King application creates an update to inform the deleted friend that they have been "sacrificed for a free Whopper" on their wall.
The wall post also includes links to install the Whopper Sacrifice application or join the group.
The application has over been downloaded by more than 15,000 users, with an additional 200 joining the Whopper Sacrifice group.
The campaign was created by agency Crispin Porter + Bogusky, which raised controversy with its and ads last month.
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