youtube,cin or youtube.cin is a common typo in which 70,000 people and counting have constantly made while either typing badly or too fast, meaning to type youtube.com. When entered you are taken to a strange video with seven or so asian girls singing and dancing with balloons.
*types in youtube,cin and watches*
Stephen: "Dude, youtube,cin FTW!!!!"
An acronym for Everybody's. Pink. On. The. Inside. This originated from the comic created by Daniel Araujo from Deviant Art a.k.a justflyakite. It's was a comic that started with the same frame every time, but has changed.
lol, Dani's EPOTI comic is so funny, but it has lots of dumb puns, laff.