American Barbarian is a comic-book-style webcomic — rather Kirby-esque adventures — set in an extremely strange United States — apparently far future.
- After the End: The world-ending catastrophe is referenced as the "Great Clusterfuck"
- Base on Wheels: The Moving Fortress, a city built inside a massive tank-like vehicle..
- Big Bad: Two-Tank Omen, a gigantic "satanic pharaoh" who has full-sized tanks for feet.
- Leave No Survivors: Two-Tank-Omen's modus operandi
- Love Triangle: Averted and lampshaded: Rick is glad that she turns out to be the sister of the other man.
- Multicolored Hair: The Yoosamons all have red, white, and blue striped hair. Pa has this pattern in his beard.
- My God, What Have I Done?: Rick is horrified by how his attempt to win Two-Tank Omen's trust give Omen a chance to wreak destruction.
- Stable Time Loop: The first Time Machine test caused Rick to become the strange rainbow-humanoid explorer who gave himself cryptic advice. He also takes the Medusa Bolas with him, because that's what the explorer did.
- Temporal Paradox: Rick refuses to undo the apocalypse, since it would erase everyone who lived in his post-apocalypse world. Well, almost everyone.