system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Gaslighting

I hear this getting thrown around a lot on reddit when discusses relationships/abuse. It sounds like something you couldn't pull off on an adult, so I need the ELI5 explanation...ha.
gpt
"Gaslight" is an old film about a man who uses trickery to make his wife think she is going crazy.

The term "gaslighting" is used to refer to an emotionally abusive behavior in which the abuser attempts to convince the abused that it is the latter's fault. 

Since the term is often used in feminist contexts, it often refers to labeling women as "hysterical" when they are having reasonable reactions given the circumstances. However, the concept of gaslighting is broad enough that the abuser/abused can be either sex.

For examples of the behavior, watch pretty much any episode of Mad Men which features the marital relationship of Don and Betty.