tinfoily

adjective2

1. •
   Resembling or characteristic of tinfoil.

   • It tinkles. As it skitters along the ground, it makes a tinny, tinfoily little noise as its edges scrape along the concrete. — 2006
2. •
   (informal) Characteristic of or prone to paranoia or conspiracy theories.

   • By the time you land an engineering gig at Apple, you are a twitchy, tinfoily mess. — 2019