Not every innocuous schoolboy joke becomes a worldwide cultural phenomenon, but this one — 4/20, 4-20, four twenty — has had legs since it began 41 years ago at San Rafael High in Marin County.

This year, the universal code for marijuana use is being co-opted by everyone's favorite “hacktivist” collective, the masked men and women at Anonymous. The group announced an “operation” for this Friday called Operation Cannabis, stylized as #OpCannabis.

Thus far, websites have been hacked, YouTube videos have been uploaded, and cannabis smokers have been asked to turn their social media profiles green. But what else can we expect?