tinfoil hat

tinfoil hat

slang A paranoid or delusional mindset centered around a belief in some conspiracy theory or another. Refers to the cliché of using such headgear to prevent mind-control or having one's thoughts read. A: "You know that they put those GPS trackers in your phones so the government can monitor you, right?" B: "Dude, you need to take your tinfoil hat off and spend some time away from the Internet for a while." A lot people wearing tinfoil hats believe the moon landing was faked by the US government.
See also: hat
Farlex Dictionary of Idioms.
See also:
  • be careful what you wish for(, it might (just) come true)
  • do not try this at home
  • a sight to behold
  • be all Greek to someone
  • (it's) (all) Greek to me
  • Greek to me
  • Greek to me, it's
  • it's all Greek to me
  • plot thickens
  • plot thickens, the