Go to Hell Hat means: F-105 pilots and EWOs from Australia were equipped with Australian Bush hats made in Thailand. They flew bombing missions to North Vietnam and Laos in Operation Rolling Thunder, a wartime campaign that saw the creation of Thai-made Bush hats. (in Community Dictionary, added by Gavin Dawson)
What else does Go to Hell Hat mean?
- Flat caps are also known by another name. Named because hooligans and old men who wear them are likely to tell their victims to go to hell. (in Community Dictionary, added by Macey Cannon)