At San Rafael High, a public high school in North Bay, in 1971 a group called the Waldos would say 420 to eachother when walking in between classes. Letting them know to be at the statue of Louis Pasteur at 4:20pm to go toke.
Jim - "420"
Steve - "420"
by FJP August 06, 2007
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A time and date at which people enjoy smoking more pot than they would at any other time on any other day. It is also my birthday.
Dude it's 420 lets get even more fucked than we already are!

Dude! It's my birthday too, even more reason to get even more fucked!!
by bongsaremybirthright October 16, 2004
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ya!! its 420!! and no bob marley did not die on 420 he died may 11th..origin is from the Waldos but either way..

have fun!!! ^O_o^
why drink and drive when you can toke and fly
by trickylv April 20, 2005
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Columbine Day. 4/20/1999 Eric Harris and Dylan Klebold commited the worst school massacre to date, killing 13 and injuring many more in their suicide mission at their local Highschool.
-What's with the date 420?
-Dude, it's Columbine day!
by bitchslap May 11, 2006
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The number that follows 419.
<What number comes after 419?>
<420! You idiot!>
by BJ August 25, 2004
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