Gross bag
From Twilight Heroes Wiki
gross bag
Plural: gross bags
This looks suspiciously like an air-sickness bag. A full air-sickness bag. I would get rid of this as quickly as possible if I was you.
Miscellaneous Item
Autosell value: 50
Combat Usable
How Obtained
When Used in Combat
You fling the gross bag at your foe and it explodes. I'll leave the details to your imagination, but it does 50-60 damage.