(CTCP) A type of protocol created to allow structured data such asfont information to be exchanged between users on IRC. It is also used to send a query to a user. The available CTCP commands include VERsION, FINGER, DCC CHAT, DCC sEND, TIME, PING, ECHO, CLIENTINFO. some commands are not available on some IRC clientsoftware. (1995-04-12)