revolving son of a bitch
n.— «I happen to be of an almost extinct breed, an old-fashioned gentleman—which means I can be a real revolving son of a bitch when it suits me.» —by Robert A. Heinlein Stranger in a Strange Land , 1961. (source: Double-Tongued Dictionary)
Further reading
Is there something inherent in English that makes it the linguistic equivalent of the Borg, dominating and consuming other languages in its path? No, not at all. The answer lies with politics and conquest rather than language itself. Plus: a new...
A Delaware listener wonders about her grandparents’ use of the phrase I beg your pardon, which sounds a bit old-fashioned to her and her peers. Her grandparents were prim and proper, and used this expression whenever they felt slighted or...