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10.
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 June 23, 2005
 
22.
420
April 20th, 1889: Adolf Hitler is born. Yep, 420 is Hitler's birthday. Look it up. Bet you stoners didn't know that, huh?
"I think I'm gonna go celebrate 420."
"Fascist!"
by Sgtstumpy April 20, 2009
 
23.
420
the temperature at which weed vaporizes, a code word to smoke weed, and the date which is national weed day.
yo 420
the vape is at 420
its 4/20 lets get fucked up
by jatgm1 April 26, 2014
 
24.
420
The 20th day in the month of April. Also known as St. Jackass Day. Followers of St. Jackass celebrate by making "lol 420 blaze it" jokes. Celebrated by sheeple.
Hey it's 420! The day we don't have to pretend we can't hold a conversation about anything but but weed! Lol!
by Nanasaywhat February 04, 2014
 
25.
420
The official day of Marijuana.
On 420 I'll smoke like a chimney!
by R@afy-RJ.BRASA! April 20, 2010
 
26.
420
to add to the "waldo" deffinition....4/20, is also considered "National Pot Day, 4/20 being April 20th" and alot of people wait till 4:20 on 420 to get high
heyy, are yyou in on 420?
hell yyea....who isnt?
by deadea August 29, 2007
 
27.
420
Contrary to the definition you list, which I have heard before (that, or similar versions), my understanding is that 420 derived from California Senate Bill 420 (the Medical Marijuana Program Act) which was passed by the State Senate in 2003. According to Wiki: " It clarified the scope and application of California Proposition 215, also known as the Compassionate Use Act of 1996, and established the California medical marijuana program. The bill's title is notable because "420" is a common phrase used in cannabis culture."
by Lynn Autumn February 27, 2012
 
28.
420
Yes it was the time 4:20 when pot smokers met but not at San Rafael High, or maybe they did, and it's a coincidence, but at Edison High School in Huntington Beach California. 1971, and 1972, deals and smoke were happening behind the Horticulture area and 4:20 was the time. It became a code even then, you would raise 4 finger and then 2. It meant see you at the spot at 4:20. There was a reason for the time, it was when the area would be clear of any supervision and was a free place to smoke. There was a lot of pot grown in the horticulture class, and I remember once when we were all waiting for My Hoyland to leave, he came rushing in the room with a flat full of small pot plants and he wanted to know whose they were. The plants were all too small to have been any of ours! Our stuff was already well over 3 feet to 5 feet high and planted throughout the school grounds. My favorite was just outside the principals office window! 420!!!! It's quite possible that some students transferred to San Raf or from there to Edison and brought the code with them?
But 420 was the code for pot smokers, it defined the place and time!
420 was also a group which became a political party one year. Edison was rumored at that time to be high on the list (Nixons watch dog for drugs in schools) of the most wise spread use of pot and so called drugs in the country. 3 narcs were assigned at this time to our school, they were nick named by the 420's as the "Mod Squad" and were all over 25 years old and looked it! LOL! In a predominately white school 1 of them was black, the 3 wore expensive hippy clothes and spoke like cops. They were led on by 420 stoners and at an election rally a certain candidate sponsored by the 420 group, who also passed out Vote for me on rolling papers, made a speech wanting to legalize weed on campus, (That was the 420's agenda) and then at the end of the speech pointed out the Mod Squad, and identified them as undercover narcs. They left in a hurry and were never seen again. The 420's pulled pranks and were known to smoke openly, trying to find ways to make pot accepted.
by Lyle Gibson April 21, 2011