What the hell is 420 ?

The number 420 more than likely you're familiar with. That number yes it's the number that comes right after 419 and before 421 but it has a whole different meaning that is a bit sticky-icky and pretty insightful under the right circumstances. It's a date, it's a time of the day, it's slang and in today's internet world it has also become associated with memes so let me explain to you its origins and history and just exactly why your older brother smells a little funky every day around that time.