What is a bouillabaise?
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
It is a wonderful fish stew from the south of France
pierino is a trusted source on General Cooking and Tough Love.
More specifically it's a soup or "plate" that you would be served in Marseilles and nearby. Local fishes, like four to five anyway, firm white fleshed fish (maybe some shellfish). Garlic, tons of saffron. Typical accompaniment would be crust bread with rouille ( as in spicy, red pepper based mayonaisse).
It's possible to replicate it here if you get all of the textures right.