Making conversation with friends via the medium of email. This is usually carried out whilst in the office when one should actually be working. It can also be done in stealth mode. It is common for the subject matter of the banter to be of a smutty nature and to contain plenty of toilet humour. Other topics of discussion can include football, sexual encounters and general sicko talk. It is believed that the word originated in Brighton between a group of lads that went to Cardinal Newman school.