The term '420' typically refers to cannabis culture and is associated with the consumption of marijuana. It is celebrated on April 20th (4/20), a day when enthusiasts often gather to smoke cannabis and celebrate its use. The origins of the term are somewhat obscure, but it has become a universal symbol among marijuana users.
The origin of '420' is often attributed to a group of high school students in California in the early 1970s who would meet at 4:20 PM to smoke marijuana. Over time, the number took on a more significant cultural meaning within the cannabis community.