By extension from “420,” the numeric underground slang for cannabis, “710,” pronounced “seven ten,” is slang for cannabis vape oil. Vaporizing oilpens and other products made from cannabis concentrate are all recognized here. The origins of this number become apparent if you write the number down and then rotate it until you’re looking at it upside-down: OIL.
Just as April 20th is a special day in cannabis culture, July 10th uses American calendar standards to become a designated holiday for cannabis concentrates consumption. It’s not quite as big a deal as 420, but it’s still there. We like to call it “Dab Day.”