- Acceptable Targets: Conservatives, liberals, socialists, libertarians, feminists, communists, Christians... It would be easier to list things the book doesn't fire shots at.
- Adaptation Displacement: More people know of Discordianism through Illuminatus! than through Principia Discordia.
- Anvilicious: Multiple examples:
- Authoritarianism is bad.
- Classifying people into arbitrary categories of good and evil only leads to Black and White Insanity.
- Unforgiveness is bad.
- "Funny Aneurysm" Moment:
- A scene where The Pentagon is targeted by a terrorist bombing possibly by the allies of the good guys.
- The terrorist attack on a rock concert is also uncomfortable in the wake of the November 2015 Paris attacks.
- Hilarious in Hindsight: A chapter about a rock festival said to be bigger than Woodstock spends over a page listing off stereotypical names for fictional bands; one of the groups so named is Nirvana. In fact, not all the band names are fictional; for example H. P. Lovecraft were a real sixties garage rock group, and (the original) Nirvana were a sixties psych group.
- Memetic Mutation: fnord
- Sliding Scale of Libertarianism and Authoritarianism: Take a guess.
- Values Resonance: Censorship, authoritarianism, and pigeonholing people into categories are still big issues in today's America. The book's messages, while not exactly subtle, are still as relevant as they were back in the the '70s.
YMMV / Illuminatus!