Happy 4/20 Everyone

Ok, so turn around the numbers and go American 4/20 instead of the Europes noraml 20/4, so it becomes 420 so that again stands for 420 Session of Smoking Marijuana day. So having a Session on April the 20th means for some people We gonna smoke Marijuana or smoke SHIT day.
Ok, I get it. I guess. To me April 20th is just that, the 20th of April.
Or perhaps for all I know, I may haven´t understood jack shit of anything really. Lol.