Slash

Slash 

Refers to the presence of a homosexual relationship featuring at least one canon character. May or may not include graphic or explicit sexual content. Derived from the "/" used to indicate the specific characters paired off; orignated by Kirk/Spock (of Star Trek) slash over 40 years ago. Male/male homosexual content is always known as "slash", while female/female homosexual content may also be known as "femslash" or "femmeslash".