DEFINE: 420

420 is a common term among smokers used to refer to smoking cannabis. “Is it 420?” can be an invitation to smoke to other smokers.

The term is commonly thought to have originated in the Bay Area, referring to the police code 420 which signified cannabis smoking in public, but this is likely an urban myth.

April 20 or 4/20 is a celebrated day within the cannabis community, with large gatherings throughout the country.

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