Gaslighting

Gaslighting is the manipulation of someone into questioning their perception of reality.^[2][3] The term derives from the 1944 film Gaslight and became popular in the mid-2010s.^[4]

Some mental health experts have expressed concern that the term has been used too broadly. In 2022, The Washington Post described it as an example of therapy speak, arguing it had become a buzzword improperly used to describe ordinary disagreements.^[5]