"420 friendly" is a term used to indicate that someone or something is accepting of cannabis use. It means that consuming cannabis is okay in a particular space, event, or with a group of people without fear of any interference or penalty. The term originated from a group of high school students in San Rafael, California, who would meet up at 4:20 pm to smoke weed. Over time, the term has evolved to include a wide range of contexts, from apartment listings and Airbnb rentals to job descriptions and public signage. Being 420 friendly does not necessarily mean that someone smokes weed themselves, but they are accepting of those who do. It is important to note that being 420 friendly does not necessarily mean that every consumption method is okay, and it is still important to check with people or places before lighting up or pulling out your stash.