The line comes from La Classe Américaine, the French film built around re-edited classic Hollywood footage and new French dialogue, which gives its familiar scenes an unexpected comic voice. Chercher du trouble, meaning to look for trouble, fits that playful reworking perfectly, because it turns a dramatic entrance into a knowing joke. French-speaking creators have kept the phrase alive in edits and memes, using it as shorthand for someone who arrives spoiling for a fight. Its short length and instantly readable attitude help it work even for viewers who do not speak French.