What does this mean?

[klmno]

I'm sitting here reading online personal ads while my food is cooking. LOL! No, I'm not responding or really "looking"- these are mostly people in their 20's who seem a little on the wild side. My question- what in the world does "420 friendly" mean? (I am really out of touch!)

 

[witzend]

They smoke pot. 420 is the police code for pot.

 

[klmno]

oh-thanks!

 

[DammitJanet]

Also April 20th is supposed to be a big day for smokers to get together and get high...lol.

420 is a big number in the weed circle.

 

[totoro]

As one who went to High School in Marin... well let's just say I was immersed in the 420 lingo, where it was started.
Here are the facts on it.
http://www.snopes.com/language/stories/420.asp