1. A popular term used to describe a weed smoking time created by the waldos because they always smoked at 4:20. it has spread into a code for smoking and now April 20th has been established as national pot smoking day

2. A number usually found between 419 and 421.

3. A police code for a homicide

4. (April 20th) Hitlers birthday
1. hey man its 420, time to smoke!!!
2. hey man i just counted to 420!!!!
3. -guy gets killed- (cop): WE GOT A 420!!!
4. hey man its the H-mans B-day, lets go heil and celebrate
by SinisterL April 24, 2010
People on gaming platforms who think it's cool to put 420 in their name. It also applies to anyone with weed related names.
"Look at that guy right there! His name is sUpAkUsH420. I'm pretty sure he thinks he's cool because he smokes weed."
by A straight edge November 15, 2009
a time to go smoke or the day everybody goes to smoke pot,or is also the day hitler was born
yo were gonna smoke on hitlers birthday its 420
by S.E. 24 January 19, 2009
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
Most people don't know this. Like the dumb shit that said something about a bunch of pot smokers wanting a code language. Bull shit. On April 20 of 1937 marijuana was outlawed by the Marijuana Tax Act of 1937. Stoners smoke on that day just to be ass holes because it was outlawed on that day. Its a rebellion more than anything else.
420 is when I smoke weed.
by excicutioner April 27, 2015
Adolf Hitler's birthday. Therefore some hardcore white supremeist had tattoos with that number.

it is also Pot day, how unfortunate.
or conviently confusing.

Are they a pothead or a skinhead?
Hay nigga, watch out for that one, gotta 420 tat and looks like he got a white hoodie wida point to it
by Dick tastes like poop October 29, 2013
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."
by Sgtstumpy April 20, 2009

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