A group of 6 or less who are inseparable. Usually unapproachable. Want to spend most if not all of their time together. Usually have many inside jokes that the "outside world" doesn't understand.
Ivy, Jessi, Ruthie, Sheridan, Nate, and David are a clique of six. They repeat their inside jokes over and over and laugh every time. They also have a favorite game in common, which is Dutch Blitz. They all text each other frequently, and attempt to make plans which often fail.