double double
n.— «“Double double? What’s that!?!” Most people react like this the first time they hear the term. Someone told me once that a famous New York writer ordered his coffee that way and the term stuck to mean “coffee, double cream, double sugar”.» —“Double Fumed Over Double Double” by Peter Brouwer Useless Knowledge July 5, 2005. (source: Double-Tongued Dictionary)