It could refer to a DIY Halloween craft project, such as dying lima beans or making ghost-shaped bean bags for games.
It might relate to a "Glow In The Dark Atomic Ghost Bean" from a 2010 collectible set.
If you can tell me (e.g., YouTube, Reddit, TikTok), I can give you the exact content it points to.
Given the results, here are the most likely contexts for that tag:
