tin foil hat

Noun

Meaning

tin foil hat (plural tin foil hats)

A piece of headgear made from one or more sheets of tin foil, aluminium foil, or other similar material, especially when worn in the belief that it shields the brain from electromagnetic fields, or against mind control and/or mind reading.
Synonym: (abbreviation) TFH

tin-foil hat (plural tin-foil hats)

Alternative spelling of tinfoil hat

Alternative names

tin-foil hat

Close letter words and terms