half-past-six
adj.— «The fairer elite (those who are descended from Europeans) are known as “the upper 10.” At the other extreme are the Portuguese-Eurasians with Malaccan roots who belong to the “half-past six” or “lower-10″ strata.» —“The shrimp people” by Jenny Lam Straits Times (Singapore) July 18, 1992. (source: Double-Tongued Dictionary)