Don't speak like a textbook when learning a new language - Converse like a native!
Avaler par le trou du dimanche (Eastern France and other parts, probably more used by older folks)
Crébillonner (Nantes exclusively)
Dracher - la drache (Nord Pas de Calais / Belgium)
Gavé Ex: Ta lamproie à la bordelaise, c'est gavé bon ! (Bordeaux)