This is the Masticator's ear. You bit it off after pummeling him senseless. Congratulations on beating him. He's one of the toughest NPC's in the game, especially when you don't have any weapons or armor.”
When you deliver the knock-out blow to the Masticator during the boxing match, the ear might be added to your inventory.
Similarly, the Masticator can rip your ear off if he hits you while you have 110 HP or less. This must happen in order for the player to be able to bite off the Masticator's ear. (Roughly 160+ unarmed is also necessary).
Behind the scenes
- The item description is one of the occasions in Fallout 2 where the game implies that you are playing a video game.
- This is a reference to the infamous boxing incident when Mike Tyson Bit off a portion of Evander Holyfield's Ear.
- Mastication is the act of chewing, thus masticator is one who chews.