The vast majority of the words a Cajun will use are perfectly understandable to anyone who speaks fluent French. Nevertheless, some words have evolved meanings which differ slightly from those used in other parts of the world.
Essence is perfume in Louisiana.
Les voitures are what horses used to pull in le bon vieux temps . Folks needed sustenance after doing their early morning chores. In the evening, we still eat our souper . French Canadians use the same terms we do. It's not funny being called drole in Louisiana.