Château Heartiste’s definition: A cuckservative is a cowardly pussy who sucks up to leftoid equalists for mercy and pisses himself when he gets accused of racism, sexism, or anti-semitism. Corollary to Heartiste’s definition: The cuckservative will throw his brother and his nation under the bus…
See also the first paragraphs of an article on the Occam’s Razor blog here & an Occidental Dissent article here.