Fr Giles, on his blog onetimothyfour uses this term. I am told that it is regarded as politically incorrect. I suggest as an alternative which can offend no-one the word episcopussies.
So Linz is not to get Mgr Wagner as assistant bishop. The RC Church is getting increasingly autocratic and paranoid about dissent. Just like when the Inquisition was in operation. Except that it's now the heretics who appear to hold the whip.
I had wondered whether The auxiliary Bishop of Linz might do nicely in a Limerick competition. (Older readers will recall Mgr Ronnie Knox and Vermont).