Definition of tinfoil hat in English:

tinfoil hat

Line breaks: tin|foil hat

noun

humorous
Used in allusion to the belief that wearing a hat made from tinfoil will protect one against government surveillance or mind control by extraterrestrial beings: you don’t need to be wearing a tinfoil hat to understand that your privacy might not be as private as you would think
More example sentences
  • The tinfoil hat brigade always maintained that "it was all about oil."
  • Standard precautions apply - vigilance about unsolicited messages, updating AV protection, use of stronger passwords, tin-foil hats hats etc.
  • Wearing a tinfoil hat to deflect government mind-control radio waves is even more foolish than most people think.

Definition of tinfoil hat in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day flippant
Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude