Is there a slang usage for the word phrase "croque-monsieur"?
We now that the croque monsieur is a traditional baked or fried boiled ham and cheese French sandwich.
While in France many years ago, a friend of mine made a variation of the croque-monsieur in which he made using only a béchamel sauce (no meat or anything else) with lots of Dijon moustarde on dried bread or biscuits and baked until golden on top. He put enough Dijon mustarde to make it burn your nose and make your eyes water. He would have this every November 2nd (All Soul's Day).
He told me that he calls this particular sandwich "The Undertaker".
Can anyone here inform me if in fact such a slang usage for the croque-monsieur exists in French?