AA
From Plastic Tub
Abreviation and common form of Accidental Associationalism. Not to be confused with Alcoholics Anonymous, the Argentum Astrum or any other quasi-religious organization bearing these two initials.
Although we speak of "The AA" and "AA'ers," it should be noted that the AA never represented any formally chartered or established group as such, but for a group of individuals and groups so-chrtered, bound together in a loose affiliation based on shared ideas and cameraderie.
AA has also stood for Accidental Action and the Association of Association.