Slang abbreviation of 食用菌 (edible fungus/mushroom). Used in casual contexts, especially among mushroom foragers and online communities. Antonym: 毒菌 (poisonous mushroom).
Abbreviation of 食用菌 (しょくようきん), literally 'edible fungus'. The exact origin is uncertain, but it likely arose in informal contexts such as online forums or among mushroom enthusiasts.