From Team Fortress Wiki
The Triboniophorus Tyrannus (/'traɪ,boʊniːoʊ,fɔərʌs/ /taɪ,rænʌs/ treye-boh-nee-oh-foh-russ teye-ran-uss), often referred to as the Brain Slug, is a community-created headwear item for the Pyro. Triboniophorus Tyrannus is a green, gelatinous slug with beady black eyes, placed off-center atop the Pyro's gas mask-burnished head.
- The Triboniophorus Tyrannus was added to the game.
- This hat was made craftable.
- This hat was made paintable.
- [Undocumented] Added a community-contributed description for this hat.
- [Undocumented] This hat can now be uncrated with Unusual quality.
- [Undocumented] This hat was added to the Mann Co. Store.
- The Triboniophorus Tyrannus' painting texture was improved.
- [Undocumented] Triboniophorus Tyrannus now makes squishing noises when moved in the backpack.
- A Triboniophorus Tyrannus that has been Gift Wrapped will appear as a "Pyro Brain Sucker" on the description of the Carefully Wrapped Gift.
- The Triboniophorus is a genus of green slug native to Australia.
- Triboniophorus Tyrannus roughly translates to "Slug Tyrant" in Latin.
- The hat appears in page 2 on the No Text version of the True Meaning comic with a Santa hat on it.