Mandela
Definition
A surname associated with Nelson Mandela (1918–2013), the South African anti-apartheid activist and revolutionary who served as the first black president of South Africa.
A reference to the 'Mandela Effect,' a phenomenon in which a large group of people shares a false memory of an event or detail.
The namesake of 'The Mandela Catalogue,' a series of analog horror web videos known for their uncanny depictions of alternate-reality threats.
Examples
If you are absolutely certain you remember the Monopoly man wearing a monocle, you might be falling victim to the Mandela effect.
Trying to explain the Mandela effect to someone who barely remembers what they had for breakfast is an act of pure, unadulterated optimism.
I told him the plot of the latest analog horror series, and now he is treating every shadow in his house like it is an intruder from the Mandela Catalogue.