420 

The number that follows 419.

<What number comes after 419?>
<420! You idiot!>

420 by BJ August 25, 2004

420 

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!

420 by bitchslap May 21, 2006

420 

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

420 by Dick tastes like poop October 30, 2013

420 

An oustanding sailboat, used for recreational purposes and racing.

Damn, that's a hot 420.
Let's go sail some 420s.

420 by Maida August 30, 2008

420 

This supposed holiday was actually created by a Governmental Agency in an attempt to secure, arrest and imprison marijuana users. In 1957 a secret Government society ironically named "Numbers" was to spread word of a holidy. One that celebrated when marijuana was first discovered. Beware of this holiday, for it is more likely a Government conspiracy to attack marijuana users. Nah, I'm just fucking around. Does sound like something a pothead would say though huh? Paranoid anyone?

420 CyanideChild420... yahoo screen name. hit me up

420 by The Real Atrocious April 22, 2009

420 

This is the real definition

California Senate Bill 420 (known as the Medical Marijuana Program Act) was a bill introduced by John Vasconcellos of the California State Senate, and passed by the California State Legislature and signed by Governor Gray Davis. This was the bill that legalized medical Marijuana.

Do you remember that awesome bill that they passed called 420? Lets all go toke and get high on 4/20 to honor it!!

420 by J Mile 22 April 8, 2009

420 

420 means national weed smoking day, also it is a number between 419 421.

Man 1: Hey dude, its 420 today!
Man 2: Uh what's 420?
Man 1: The fourth month twentieth day.
Man 2: What? April 20th is 420?
Man 1: Ya its national weed smoking day.

420 by The real Samuel November 15, 2012