420

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 July 4, 2005

420!

Originated in San Rafael high school in 1971 by a group of stoners named the "Waldos"... they would use the code 420 to say that they would meet at 4:20 to smoke...also assoctiated with April 20th...my name is henry hennessy and my father smoke pot and everything elses...his birthday is April 19th and he graduated high school in 1971.

my dad was a total stoner

by Henry Hennessy September 4, 2006

420

Code for homicide. From CSI, but is the actual police code used by the Las Vegas Metropolitan Police Department.

419 = Dead Body
419A = Drowned Person
420 = Homicide
420A = Murder/Non-negligent homicide
420B = Manslaughter
420Z = Attempted homicide
421 = Sick or injured
421A = Mentally ill person
422 = Sick or injured Officer

by Alfie The Horndog July 5, 2007

420

The national rememberance day to which we all acknowledge that the best joys in life are through the use of killing yourself.

I will smoke that on 420

by Cy O'Hare March 9, 2017

420

A NUMBER

My dog weighs 420 grammes

by 0b1010101 April 20, 2018

420

Hitler's birthday (April 20 1889)

April 20 1889 is Hitler's birthday

by veggieness April 19, 2005

420

A day where people gather to celebrate and consumer cannabis, better known as marijuana. The term derived from a group of teenagers at a high school in San Rafael, California back in 1971, who would meet after school at 4:20 p.m. to smoke marijuana at the Louis Pasteur statue.

Happy 420!!

by HaraShogunate April 20, 2009