From Wiktionary, the free dictionary
From shipper + -hood.
shipperhood (uncountable)
- (fandom slang) The state or quality of being a shipper.
- Synonym: shipperdom
1997 February 3, Colleen Sullivan-Baier, “Re: "Never Again"”, in alt.tv.x-files[1] (Usenet):This ep pushed me off the fence and right into full-fledged shipperhood ( I WANT TO BELIEVE !!!)
1999 July 22, Kipler [username], “Re: Mulder/Scully "relationship"”, in alt.tv.x-files.analysis[2] (Usenet):Ah... I find that the best way to maintain joyous shipperhood is to not read much schmoopy shipper fic.
2002 September 21, Tori Sky, “Re: FB: DS9: Edge of the World 1/2 (O/K; NC-17)”, in alt.startrek.creative.erotica.moderated[3] (Usenet):Look, it's all happy and hopeful and absolutely wonderful--but I need more to sustain my Odo/Kira shipperhood!