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!"
by Hannegan December 9, 2007
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Marijuana a time of the day when one smokes marijuana
A time or date when one smokes marijuana
by Tony April 22, 2005
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