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420, 4:20, or 4/20 (pronounced four-twenty) is a code-term in cannabis culture that refers to the consumption of cannabis, especially smoking cannabis around the time 4:20 p.m. (or 16:20 in 24-hour notation) and smoking cannabis in celebration on the date April 20 (which is 4/20 in U.S. form).
== Origins ==
In 1971, Steve Capper, Dave Reddix, Jeffrey Noel, Larry Schwartz, and Mark Gravich, five high school students in San Rafael, California, calling themselves the Waldos because "their chosen hang-out spot was a wall outside the school", used the term in connection with a 1971 plan to search for...