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:
- The US English dictionary