The first owners to have purchased or built homes in a housing development. Though not always living in an actual cul-de-sac, these persons or families do tend to over-pal around, especially during social holidays like the US 4th of July or Labor Day. The cul-de-clique's members typically control production and distribution of pool keys, and direct important neighborhood events such as the Easter Egg Roll and the Independence Day Bicylce Parade.
Our cul-de-clique upgraded the neighborhood Halloween celebration this year to include the passing out of candy by the local fire department's pumper truck. Whatever.