Live-fanficing is the process of writing a fanfic live via streaming sites (or sites such as tinychat) with an audience. Audiences will not input or add to the story while the author is writing the fic but sometimes will comment on things they like. The term was first coined on tumblr, where many individuals belonging to fandoms such as Harry Potter, Dr.Who and Supernatural, reside. The first live-fanficing session was over tinychat and the fanfic was about Harry Potter.
"Did you see that amazing fanfic Lissa wrote last night? I read it live!"
"She was live fanficing it!"