1986, Susan Lardner, "Lotus Blossum", The New Yorker, 29 December 1986:... I see, twenty yards away, workmen pinkwashing the newly laid, badly stained, cheap-looking brick cladding of a newly built apartment house called — well, something ridiculous: Nepal, let's say.
2008, Penelope Williams, Breast Cancer: Biography of an Illness, BPS Books (2008), ISBN 9780980923155, page 162:They see such corporate involvement as exploitation, making profits on the backs of ill women. ... They claim these campaigns trivialize the disease, "pinkwashing" its real nature.