Game played with smartphones with a facebook app, such like iPhone. The game consists by scrolling down eachothers friends list and picking out a random person (girls for boys, and boys for girls ) writing something or doing something (mutually agreed upon) embarrasing on their wall.
Writing "Wanna grab a cup of coffe?" to an ex with you have an infected relationship with or writing "oh my god, you are so hot" to a friends hot mom. Thats facerolling!