An acronym for Roleplaying in public including doodles.
It is usually done and passed between the users in a copybook or some
type of notepad.
RIPID is a variation of
RIP (roleplaying in public) that includes drawings of either the characters and/or the events taking place in the story. Occassionally ooc drawings are included as well.
Ripid has also been used as a
verb, taking on the meaning 'to reply to the book'.