(colloquial) Egotism; a focus on, or obsession with, oneself.
2011, Konrad McKane, Alkaya: The Legend of Empyro, p. 14:They teach that everyone is a separate entity, and you should look out for number one, creating a selfish meism society.
2005, Christopher McEnroe, It's Only the Enemy Screaming, p. 119:The new hippies, most of them, were just people who didn't buy into the rampant meism we were fed as children and teenagers.
2001, Beverly Potter, Jeffrey Mishlove, Matt Gouig, The Way of the Ronin: Riding the Waves of Change, p. 174:The need to be a good team member and the propensiry toward individualism make the corporation an excellent opportunity for ronin to wrestle with the shadows of meism, opportunism, and glibness.