Master suppression techniques
The master suppression techniques (in Norwegian: hersketeknikker) is a framework articulated in the late 1970s by Norwegian social psychologist Berit Ås. Building upon earlier work using the term hersketeknikker by Ingjald Nissen, Harriet Holter and others, Ås described five techniques for indirectly suppressing and humiliating opponents: making invisible, ridiculing, withholding information, double bind and shaming.
Source: Wikipedia — Master suppression techniques (CC BY-SA 4.0)