Subservient Chicken: BK online ad campaign that right now allows you, the random web surfer, to instruct a full-grown person in a very elaborate chicken outfit to do, well, more or less anything.
Here’s a MeFi thread which keeps track of what the Chicken will and won’t do. The thread also includes anecdotal evidence that the Chicken is a collection of looped video actions tied to keywords. A monkey dissected it, provding further evidence for that line of reasoning.
Is this Sars the Chicken?