Funguy generally refers to a brand of mushroom kits or a mushroom-themed character, but when describing the mushroom itself (like the Blue Monster Oyster from The FunGuy) it’s a medium-to-large, dark-capped oyster mushroom with a meaty texture and mild, earthy, savory taste that’s great for cooking, while the character Funguy in media looks like a humanoid mushroom with root-like feet and fungal growths.