Gyaru-moji

or is a style of obfuscated (cant) Japanese writing popular amongst urban Japanese youth. As the name suggests ( meaning "gal"), this writing system was created by and remains primarily employed by young women.

Like the English phenomenon of SMS language, it is most often used for sending cell phone text messages, but while text is used as a form of informal shorthand, a message typed in usually requires more characters and effort than the same message typed in plain Japanese. Since writing in requires extra effort, and due to the perception of confidentiality, sending messages to a peer is seen as a sign of informality or friendship. The origin of this style is unclear but it has been proposed that magazines targeted at teenage girls first made it popular, and the phenomenon started to gain wider attention in media around 2002.