Twitter

Twitter was a social networking website on the Internet in the 21st century.

Behind the Scenes
In a non-canonical promo for The Day of the Doctor where the fourth wall is broken, Dan Starkey in character as Strax makes an important announcement on behalf of the Sontaran Empire for the apparently preoccupied audience: "Stop tweeting and watch the movie, you pitiful human scum!" This annoyed remark was followed by a comedically timed mood swing from fury to a wry grin at the viewers.