SDRs - Special Drawing Rights. We’re working hard on a pithy definition and will bring this to you shortly. According to Robert Peston, BBC Business editor, the definition is "don't ask".
Sherpas - officials that shuttle from summit talks (geddit?) to communique drafting rooms where an army of scribes draw up the agreement.
Pool spray - American in origin, half way between a press conference and a photo opportunity.
Renegade - West Wing in origin. President Obama's secret service call sign.
Beast - A cross-breed mammal with strains of Humvee and Essex Hen night limo. Bred as transport for the Main Man.
Groupies - Spain and the Netherlands. Invited even though they are not part of the club
Glamazon - Glamorous, statuesque woman, ie Michelle Obama.
I-pod - Frame for holding photos on the Royal mantelpiece
Communique - Multinational publishing phenomena capable of being read in several different way in several different languages.