Definitions by Hannegan

four 20 

Four 20 (a.k.a. April 20th) the day of the year in which pot smokers skip work or school in order to light up

Jonny - "Hey man, you ready for Thursday?"
Ian - "Why? What's going on?"
Jonny - "It's four 20 we're all gonna skip and smoke some pot!"

four 20 by Hannegan January 3, 2008