Not speaking a word of French beyond short, bastardised phrases to irk my Québécois friend, I learned this evening that it also appears to be part of how to say praying mantis in French (Mante Religieuse), and a cake made out of éclairs.
Perhaps if the Mante Religieuse was to eat her cake after biting the head off the devil incarnate then everything would make sense.
Photos from Sirensongs, chrisghis, & mariannaF