n. A system of delusions that supports a person's overinflated sense of self-worth and importance. Egosystems are bizarrely robust despite often being overextended and lacking the actual elements that would otherwise legitimize it's sustained existence. Woe to the realist that points out the delusions underpinning an egosystem and potentially (but not likely if you're dealing with a real douchebag that won't believe you anyway) precipitating egosystem collapse... for shame!

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

A home, social, or (especially) work situation where there are a number of people around you with huge egos, all trying to out-do each other. Also refers to the 'pecking order' within these groups.