A lot like a flashback, but the memory that's pulled up is a heavily romanticized version of what actually happened. Usually involves two males and occurs most often in the twisted minds of yaoi fangirls.
Flashback:
Guy 1: Hey man, you all right?
Guy 2: Yeah, I'm fine. Thanks.
Slashback:
Guy 1: Darling! Are you hurt?
Guy 2: I'll be fine now that I'm in your arms, my love!
Guy 1: Hey man, you all right?
Guy 2: Yeah, I'm fine. Thanks.
Slashback:
Guy 1: Darling! Are you hurt?
Guy 2: I'll be fine now that I'm in your arms, my love!
by Indemnity March 7, 2009
Somebody who is going through a slashback remembers recurring times they've been hit or slashed by someone.
by Shrek-Tastic! March 28, 2019