People that hang out with one another but don't act like friends, primarily a large number of people hanging togeher but half of them aren't even associated or friends with each other. They jumble togther to look big but are pussies inside. Most of them talk shit behind each others back but don't show it. Most 40's grow increasingly fast. this occurs mostly when one person knows another person, then another person knoes another person, yet he/she does not know the other person, and the cycle continues. A person with a "40" mindset usually feels cocky since he thinks he has large support when indeed he i alone.