Top Definition
The day of celebration for the drug LSD. Many people wait in anticipation for this day to trip however they want Acid or Shrooms. The origins for this day come from within the day itself.
December 12th at 4 P.M.
L is the 12th letter in the alphabet therefore December
S is the 19th letter of the alphabet therefore the 19th day
D is the 4th letter so take a dose at 4PM.
Frank: Hey you excited For LSD Day
Me: Hell yea im gonna be tripping balls ive been waiting all year for this
Frank: Tripping face at 4?
Me: Yea Boi
by Aken99 April 13, 2011
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