出典:Wiktionary
humane + washing, following the established pattern of greenwashing, pinkwashing, purplewashing, and similar forms (which came ultimately from the figurative-extension sense of whitewashing as "slapping a paintjob over the truth to hide it かつ to give a specious nice appearance"); this form also rhymes with brainwashing, as does sustainwashing.
humanewashing (uncountable)