4chan
An imageboard based on Futaba - known as 4channel since November of 2018. Originator of many memes and macros. Also gained infamy over the years due to hosting several controversial or downright illegal forums in which the site almost never took action due to their belief in "complete free speech".
Only use this tag for posts referencing 4chan or 4chan memes. Don't use this tag for drawfag images that were merely posted on 4chan.