Informal:
* "The paunchy man in the corner booth was loudly complaining about the service."
* "After years of unhealthy eating habits, he developed a paunchy belly."
* "The paunchy cat waddled across the keyboard, interrupting my work."
Formal:
* "The paunchy figure of the mayor was a stark contrast to the slim silhouettes of the other attendees."
* "The study found a correlation between a paunchy physique and an increased risk of heart disease."
* "The author describes the protagonist as a paunchy middle-aged man with a receding hairline."
Figurative:
* "The paunchy economy is struggling to recover from the recession." (metaphorically describing a slow economy)
* "The paunchy bureaucracy is bloated with unnecessary regulations." (figuratively describing an inefficient bureaucracy)
It's important to note that "paunchy" can be considered a somewhat negative term, so be mindful of the context and your audience when using it.