I have the term used on local radio stations out of Toronto, Canada. Played as a cue to light up. It seems to have relevance to the ending of the work day (I think). Regards, Steve Powell Odessa Pictures, Inc. View our Demo Reel Online at: http://odessapictures.com/ On Sep 15, 2005, at 1:03 PM, David Fahey wrote: > My undergraduate students say 420 is marijuana slang, originating in > California, that originally announced that a group would smoke a joint > at 4:20. Anybody with clearer information? >