At least, I with my all-American taste think so: Japanese octopus-dumpling soda. From 3Yen News:
- Gee, just what I always wantedâ€”a soda drink made with the flavors of diced octopus, tempura scraps (tenkasu), pickled ginger, konnyaku, and green onion, topped with okonomiyaki sauce, green laver (aonori), mayonnaise, and katsuobushi (fish shavings).
(Thanks to The Mental Floss Blogs for the pointer.)
Update: I'm so glad to report that, according to a commenter, this is just a spoof, not a real flavor (more here). Phew.