Top Definition
4/3 is the National Day for Heroine. It's kind of in the same sense of 4/20 except for the hardcores.
"Hey man, let's go celebrate 4/3. 420 is for lame people.
#4.3 #43 #4-3 #heroine day #april 3rd
by RealNigga19 April 22, 2011
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