tinfoil hat

English - English

Definition of tinfoil hat in English English dictionary

A piece of headgear made from one or more sheets of tin foil, aluminium foil, or other similar material, the hats worn in the belief that they act to shield the brain from such influences as electromagnetic fields, or against mind control and/or mind reading

To prevent them from reading his mind, he wore a tinfoil hat at all times.

Related Terms

tinfoil hats

plural form of tinfoil hat

Hyphenation

tin·foil hat