Hallucinogenic Fish Inebriation

Ichthyoallyeinotoxism

…or hallucinogenic fish inebriation, comes from eating certain species of fish found in several parts of the tropics, the effects of which are reputed to be similar in some aspects to LSD. Experiences may include vivid auditory and visual hallucinations. This has given rise to the collective common name “dream fish” for ichthyoallyeinotoxic fish. [Text credit - Wikipedia]

Nice word though, innit.