Slashable

Origin

slash + -able

Full definition of slashable

Adjective

1. (slang) Suitable for writing slash fan fiction about.
• 1999, "Reesa", My very late Friscon report (on Internet newsgroup alt.startrek.creative.erotica.moderatedI met so many other great people who have a similar interest in pairing up those oh-so-slashable couples.