Status: True.

Origins: Odd

terms sneak into our language every now and then, and this is one of
the oddest. Everyone who considers himself in the know about the drug
subculture has heard that ‘420’ has something to do with illegal drug
use, but when you press them, they never seem to know why, or even what
the term supposedly signifies.

both more and less than people make it out to be. ‘420’ began its
sub-rosa linguistic career in 1971 as a bit of slang casually used by a
group of high school kids at San Rafael High School in California.
‘420’ (always pronounced “four-twenty,” never “four hundred and
twenty”) came Is it 4:20 already?
to be an accepted part of the argot within that group of about a dozen
pot smokers, beginning as a reminder of the time they planned to meet
to light up, 4:20 p.m.
Keep in mind this wasn’t a general call to all dope smokers everywhere
to toke up at twenty past four every day; it was twelve kids who’d made
a date to meet near a certain statue. It’s thus incorrect to deem that
‘420’ originated as a national or international dope-smoking time, even
though the term began as a reference to a particular time of day.

days ‘420’ is used as a generic way of declaring one likes to use
marijuana or just as a term for the substance itself. Its earliest
connotation of having to do with the time a certain group of students
congregated to smoke wacky tobaccy is unknown to the overwhelming
majority of those who now employ the term. Indeed, most instead believe
one or more of the many spurious explanations that have since grown up
about this much abused short form:

  • 420 is the penal code section for marijuana use in California.Nope. Section 420 of the California penal code refers to obstructing
    entry on public land. The penal codes of other states list different
    entries for 420, but none of them matches anything having to do with

    However, on 1 January 2004 the Governor of California signed that state’s Senate Bill 420
    which regulates marijuana used for medical purposes. This bill comes
    years after the term ‘420’ was associated with marijuana and indeed its
    number likely was chosen because of the existing pop culture
    connection. This is the tail wagging the dog, not the other way around.

  • It’s the Los Angeles or New York police radio code for marijuana smoking in progress.
    It’s not the police radio code for anything, let alone that.
  • It’s the number of chemical compounds in marijuana. The number of chemical compounds in marijuana is 315, according to the folks at High Times magazine.
  • April 20 is the date that Jim Morrison, Jimi Hendrix, or Janis Joplin died.Though these performers were strongly identified with drug use
    during their brief lifetimes and the emerging drug culture after their
    demises, none of them kicked the bucket on April 20. Morrison died on July 3, Hendrix on September 18, and Joplin on October 4.
  • The 20th of April is the best time to plant marijuana. There’s no one “best time” — that answer would change from one part of the country to another, or even one country to another.
  • Albert Hofmann took the first deliberate LSD trip at 4:20 on 19 April 1943. This was indeed the case — his lab notes back this up. But this wasn’t
    the source of “420,” just an oddball coincidence. (For the pedants out
    there, Hofmann’s first LSD trip, which was accidental, took place on 16 April 1943.)
  • It’s the code you send to your drug dealer’s pager. Yeah, right. All drug dealers recognize a ‘420’ page as “Please be waiting on the corner with my baggie of wildwood weed.”
  • When the Grateful Dead toured, they always stayed in Room 420. Untrue, says Grateful Dead Productions spokesman Dennis McNally.

etymologies and uncertain definition aside, ‘420’ has slipped into a
position of semi-respectability within the English lexicon. Various
free-wheeling cities annually celebrate “hemp fests” on April 20. There’s a 4:20 record label in California, and a band called 4:20. Atlanta’s Sweetwater Brewing Co. sells its 420 Pale Ale in supermarkets and opens its doors to the public at 4:20 p.m. Mondays through Thursdays. New York’s 420 Tours
sells low-cost travel packages to the Netherlands and Jamaica. Highway
420 Radio broadcasts “music for the chemically enhanced.” And in 2001,
the forReal.org web site of the U.S. Department of Health
and Human Services’ Center for Substance Abuse Prevention put out a
public service document titled, “It’s 4:20 — Do You Know Where Your
Teen Is?”

420s are routinely slipped into popular movies and television shows. In Fast Times at Ridgemont High the score of the football game was 42-0. Most of the clocks in Pulp Fiction
are set to 4:20 (but not all — when the kid receives the watch it’s set
at 9:00). And there are many other instances, so keep your eyes peeled.

as amusing as it is to tie 420 to pot smoking and hunt for it in
popular movies, the number has its dark side. Hitler was born on 20 April 1889, and the massacre of 13 victims at Columbine High School in Colorado took place on 20 April 1999.

Barbara “4 and 20 blackbirds” Mikkelson

Last updated: 19 April 2005

The URL for this page is http://www.snopes.com/language/stories/420.htm

Sources Sources:
Gaura, Maria Alicia. “Snickering Chic Traces Origin to San Rafael.” San Francisco Chronicle. 20 April 2000 (p. A19).

Hubler, Shawn. “The Inside Dope on ‘420’ Buzz.” The Los Angeles Times. 20 April 2002 (p. A19).

St. Petersburg Times. “True Reefer Madness.” 20 April 2002 (p. D1).