0 used when talking about people who believe in conspiracy theories (= the belief that events or situations are the result of secret plans by powerful people), especially to refer to something that protects them from these secret plans: --
The tinfoil hat types are really only wrong in that they think we are watching them specifically.
Let's take off our tinfoil hats for a minute. Do you seriously believe that NASA would be hiding something like that?
She wasn't the usual tinfoil hat conspiracy theorist, though.
Allow me to adjust my tinfoil hat and mention that we're going to have bigger storms now.
Remove that tinfoil hat. Seriously, you guys are just paranoid.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
tinfoil hat