Am I the only one who was really distracted by the use of the term Catfish in every other sentence? I've heard the term and I know there was a film called Catf

Am I the only one who was really distracted by the use of the term Catfish in every other sentence? I've heard the term and I know there was a film called Catfish a few years about someone who created a fake identity online but I didn't realize it was such a common term. How is a catfish different from a fraud?