tin hat

noun

Definition of tin hat

: a metal helmet

Examples of tin hat in a Sentence

Recent Examples on the Web

This also allowed tin hat lunatics to formulate fresh theories about a potential poisoning the night before the final. SI.com, "Ronaldo's 1998 Seizure & World Cup Final Appearance Remains One of Football's Greatest Mysteries," 1 June 2018

First Known Use of tin hat

1903, in the meaning defined above

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