Definition, Meaning & Synonyms

tinfoil-hat

noun

/ˈtɪn.fɔɪl hæt/

Definition

A tinfoil hat is a type of headgear made from aluminum foil, often associated with conspiracy theories and the idea of protecting one’s mind from external influences.

Examples

After reading about the conspiracy theories online, he jokingly wore a tinfoil hat to the party.
She said he must be a real tinfoil-hat wearer if he believes that aliens are watching him.
The comic strip featured characters who made tinfoil hats to ward off government mind control.

Meaning

The term ‘tinfoil hat’ refers to a humorous or derogatory concept that suggests the wearing of such a hat is meant to block mind control or communication from extraterrestrial beings or other forms of surveillance.