Flashback or flashbacks may refer to: Flashback (narrative), in literature and dramatic media, an interjected scene that takes the narrative back in time from the current point Flashback episode, an episode of a television series that consists primarily of excerpts from previous episodes Flashback (psychology), in which a memory is suddenly and unexpectedly revisited Acid flashback, a reported psychological phenomenon in which an individual experiences an episode of some of LSD's subjective effects long after the drug has worn off Flashback (welding), a dangerous hazard of using an oxyacetylene torch Flashback arrestor, a device most commonly used in oxy-fuel welding and cutting to stop the flame from burning back up into the equipment Flashback Weekend, a horror/science fiction convention held annually in Rosemont, Illinois, USA