The state whereby an object, act or procedure is used, acted on or performed in such a way that the very nature of the object, act or procedure is inherently utilized.
Cosmo Kramer's (from Seinfeld) coffee table book about coffee tables is autoreflexive. The fact that Kramer's book has fold out legs and can be used as a coffee table itself is another degree of autoreflexion. Woody Allen's Hollywood Ending, a movie about the making of a movie, is also autoreflexive.
Source: steven k