Pass the gage man” in any Google search will take you on a journey into the rabbit hole of the story about Phineas Gage. He was a railroad worker and one of the most famous patients in neuroscience history. Gage was using with explosives while working on a crew building train tracks in 1948. The explosives accidentally detonated and drove a tamping iron through is skull. He miraculously survived (although not without completely altering his personality).
The Word Gage & Its Place In Cannabis Culture
For the purposes of our use of the term Gage, it was commonly the term Jazz musicians would use to reference their use of Cannabis.
Twomey, Steve. “Phineas Gage: Neuroscience’s Most Famous Patient.” Smithsonian, Smithsonian.com, Jan. 2010, www.smithsonianmag.com/history/phineas-gage-neurosciences-most-famous-patient-11390067/.