fanfic

Fan fiction.

A work of fan fiction.

To write fan fiction.

I haven't seriously fanficced in years, and I'm aware of what the exercise requires in terms of structure and theme etc.

To write fan fiction about (something).

[…] in fact, Paramount Legal sent over a memo to Goddenberry pointing out that so many "Vulcan" stories had been "fanficced" that it probably wasn't worth his time to try to come up with anything that he could do safely.

See above on Charlie's Angels. They never seemed to have lives of any sort and weren't interesting to me; they always seemed like soft porn for the guys, but a lot of girls fanwanked and fanficced them into more, so I guess they could qualify.