Amnesidic is referred to engaging in a quick sexual encounter as a means of momentarily forgetting about one's problems or worries.
After a stressful day, RJ suggested to his partner that they have an amnesidic session to momentarily escape their problems.
"Amnesidic box" refers to the psychological process of mentally segregating memories associated with someone who once brought peace when intertwined with oneself, only to later realize that person was undeserving of their love and kindness. In this process, all memories and emotions related to that individual are purposefully compartmentalized and stored away, with the desire to forget every aspect of their existence.
After realizing that her Attachment Lesson was toxic and unworthy of her affection, Nicole decided to place all memories of him in her amnesidic box, hoping to erase every trace of their relationship from her mind.