I read this sentence: "In all his writing (and, apparently, conversation) [Roy] Jenkins loved reputation-bibbing, loved all kinds of ranking, especially of politicians."
What does "reputation-bibbing" mean?
Presumably a kind of addiction, by analogy with wine-bibbing, to assessing and possibly messing with people’s reputations. For an excellent theatrical study of such an addiction, I recommend Richard Brinsley Sheridan’s The School for Scandal (1777).