420 is april 20 the day to smoke your best bud, or national pot smoking day. It all started with a bunch of teenagers called the Waldos.
stoners mental math 4+20 = 420.... lets go smoke.
by mhorittochelln June 23, 2005
It means marijuana, it came from the police code for posession of it, which is 420. It has transformed into a time of day that stoners take heed to and smoke to celebrate that 4:20 has come around. April 20 is also known as the international get high off your ass day. Coincidently, it is the same day as: the columbine shootings, hitler's birthday and earth day.
1. Rodger that, we've got a 420 down on Mulhand drive. Need backup.

2. Somewhere its 4:20. (Lights a bowl)

3. Only a week till 4-20, I'm excited.
by George January 18, 2004
A lame excuse for people who think they are cool to get high.
"Dude it's 420, lets light up a toke"
"you're hilarious, i'm gunna go do something cool with my time instead of celebrating this wanna-be holiday"
by Timmy G. April 20, 2008
420 is code used by police that means posession of marijuana, you're all fucking idiots acting like you know when you don't
officer: just pulled over jay and silent bob on a 420
by saa_rrah December 06, 2007
The term refers to the birthday of Bob Marley he was born on April 20 hence 4/20 and shortened to 420. He is the universaly proclaimed leader of the religious use of marajuana.
In Hawaii when 420 is mentioned it is recognized as code for marajuana. The raggae music appreciation and the pot culture is widely recognized here.
by Earl H. October 08, 2007
the code cops use when they catch kids smoking dope.
"we have a 420 in progress"
by blizzies April 21, 2006
420 has nothing to do with waldos whatsoever. 420 stands for April 20th, what is Adolf Hitlers birthday, which many people in the Netherlands(home to amsterdam) and Germany celebrated during Hitlers time by drinking alcohol and, smoking marijuana. The Tradition then made its way over to the United States through word of travelers.
It's 420 time!
Lets Party Like 420!
by DGK "tOrMeNtIuM" December 17, 2007
TODAY (smokin up)
oh shiet its 4 20 time 2 hit this joint mofawka
by fuckedup April 20, 2004
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