the sacred institution of dibbs: originated during the Paleolithic era. Cavemen or Neanderthals used the dibbs as a means to reduce fatal conflicts over mates, food, shelter,etc. The institution of dibbs prevented pointless deaths by providing a universally acknowledged rule. If person or persons are competing for the same object, goal etc, the first person to call dibbs gets total soverignty with respect to the objects/goals in dispute. This institution is the secret to the success of the human race and has been respected for over 5000 years.
group of guys notice a cute girl. One among the group yells DIBBS! That guy gets the first chance with the girl without dispute from his friends. They respect the dibbs.