What is gaslighting? The meaning and origin of the term explained. There are plenty of buzzwords in the dating and relationship worlds which are silly and of little consequence long-term.
Breadcrumbing, breezing, and zombieing are all dating trends that constitute 21st century savagery, but are unlikely to bother the recipient of the behaviour too much. Gaslighting is on a totally different level to this, and is a pattern of behaviour that is part of abusive relationships.
The term originated from the 1938 play (and 1944 film adaptation) Gaslight, where the protagonist's husband slowly manipulated her into believing she's going mad. The name comes from a part in the film where the husband is using the gas lights in an upstairs flat, causing them to dim in his own.
His wife brings this up, and he convinces her she's imagining it, which is characteristic of gaslighting. Essentially, the abuser uses persistent denial, misdirection, contradiction, and lying to make the victim feel unsure of their own sanity. They may use this tactic to make the victim feel that they 'imagined' other abuse, or simply to disorientate the victim as a form of abuse on it's own. Gaslighting can happen in romantic relationships, as well as friendships or in families.