Those 4 close friends that are part of a larger group who really click and sometimes go out without inviting the rest of the group to the dismay of a select couple of members who get particularly bitchy. They value each others friendship and are the radical type of people who don't spend all their time studying.
Core 4 member: y,all busy tonight
Dan: so sorry guys ima stay in and do some extra studying
Core 4 member : oh shit didn't mean to put this on the main group chat
Dan: so sorry guys ima stay in and do some extra studying
Core 4 member : oh shit didn't mean to put this on the main group chat
by That Avacodo life innit January 06, 2018
A group of sororities at the University of Texas in Austin. The sororities include Delta Gamma, Alpha Chi Omega, Alpha Delta Pi and Alpha Phi.
by srattymcintosh August 12, 2013
the most elite secret organization, containing only 4 members and multiple associates and associate chicks
by M White Balls October 08, 2004