Helen, who is sitting just in front of her, stops playing, and turns to her. "Petra, I think we should cool it here."
1999, Alex Beam, "Still waiting for that New Year's invite", The Boston Globe, 20 August 1999:
Happenin' guys Harvey Allen (liquor) and Richie Balsbaugh (media) haven't summoned me to their ur-cool Mistral shindig; a holdup with the mail?
2003, Ramesh Kumar, Malaysia: Riches from the Golden Land, Springer (2003), →ISBN, page 81:
The pavements were turned into tree-lined, fountained boulevards; which boulevards are enlivened by jazz bands and lasers, lined by new cafes and bars, ur-cool by any standards; […]
His film, opening April 11, stars Tom Hiddleston and Tilda Swinton as Adam and Eve, an ur-cool bloodsucking couple whose love spans centuries and continents […]
True "Cool" - capitalised by the authors to indicate its underlying substance - may shift its surface characteristics (other than the eternal sunglasses-after-dark). But its fundamental nature is constant. It is this ur-cool that Pountain and Robins seek to anatomise, and anatomise it they do.