Lutheran-Catholic?

I'm writing temporarily in english since I, for the moment, do not have access to a keyboard containing all the words of the swedish alphabet.

I joined Facebook a short time ago and I have noticed that some users that call themselves "Catholic" also describe themselves more specifically as "Lutheran Catholic". What is that? There's no such thing. It's an absurdity, a contradiction, a crime against reason.
People please, let's stop with these made up names.

Ciao a tutti!