What is 420chan?
An Image board /b/rother of 4chan containing /i/. 4chan is jealous of it's 1337n355 and tries to ruin it by posting My Chemical Romance spam. Which is pointless and a waste of time.
4chan fag: LOL LOL LOL THE CAKE IS A LIE LOL LOL LOL
420chan dude: gtfo you retard...
A place where druggies (mostly stoners) go to hang out and telling how high they are and asking for movies or help with getting high and people are at the cannabis section known as /weed/
stoner1: dude where can i find a place to help me how to get baked?
stoner2: go on 420chan man they can help you