Yeah, I’m not a pot smoker, but I’ve known a lot of them. I didn’t know about 420 until years ago when my bf and I went to a county fair and there was this booth with a ton of interesting bumper stickers. I saw one that said 4:20 on it. I had no idea what it meant, and neither did he. We thought it had something to do with aliens. 
Then I asked a few more friends and they enlightened me. haha.
I hadn’t heard the term until three years ago, when I was informed that it was common knowledge.
I’ve never been a stoner, but I was surprised I’d never heard it before then, considering that the phrase has been in existence since 1971, and in popular culture at least since 1982 (the year Fast Times at Ridgemont High was released–the Snopes link cites it as making a “420” reference).
I knew about it in elementary school… late eighties, early nineties.
Hmm.
(I did have to ask my brother what it meant).
Back in the day…okay, a couple of years ago…our code word was “Cocoa Puffs”. 
Nope, because although I knew it had something to do with drugs 'n stuff, I just now learned exactly what it meant. :smack: Thanks!
Am I the only one who finds it ironic that a guy named “grienspace” has to ask this question?
Now that you know, look at how often clocks say 4:20 in movies and TV (I’m thinking of teenage movies like Eurotrip and the American Pie series.) Most of the time, no mention is made of it - you just notice it in the background.
That’s terrible… nowadays, “cocoa puffs” is slang for mixing weed and cocaine. Or at least in my area.
(Actually, if you want my own repertoire of terms, I use “5.1.1.a” to mean “smoke some weed!”, and “Homer” - for “Homer Heche”, which just sounds like slang for weed.)
I’ve known for quite some time. 
:eek: Eesh! We didn’t do that–just the weed, thank you.
What time is it 69 minutes past 3:11? heheheh.
I first heard it in high school (mid-90s). I doubt it’s much of a regional thing (at least in North America) because I actually did grow up in the region - about 20 minutes from San Rafael - and based on the statements in this thead, it’s neither more or less common in the North Bay than it is anywhere else.
It even happens in Lost in Translation!
The rock station I used to listen to at home played Weezer’s “Hash Pipe” every afternoon at or around 4:20 for about a month and a half one summer. No mention was ever made of it on air, but it just happened.