When you accidentally merge words together, swap the first letter, or when you can't decide on which word to say so you say both, merging them. It can be because you're nervous, drunk, or just not paying attention to what you're saying. Merd worge is a merd worge in its self.
Joe: Where were you last night, Steve?
Steve: I had diolent viohhrea...
Joe: Merd worge!
Ho bisogno di un aiuto, Dio merda!
Sara hai rotto il cazzo dio merda!
What are you talking about? Dio merda is the only word you can say?
Dio merda, dio merda, dio merda, Palissandro mi ha bocciato!
Daniele guardami negli occhi, dio merda, stai studiando? Tra una settimana hai l'esame porco dio.