1 definition by BlackNinjaKR
A mushroom which is celebrating Christmas wither by cosplay or baking cakes or distributing presents. If someone hurts this type of mushroom, they are bound to go to hell.
Person 1: Hey look at that mushroom, it seems like it has a christmas hat
Person 2: NO! THAT'S A CRIMMAS SHROOM!! You'll be damned if you eat that!
Person 2: NO! THAT'S A CRIMMAS SHROOM!! You'll be damned if you eat that!
by BlackNinjaKR November 25, 2021