I checked my list of Rambler wagons, and there it was, Nunamaker.
5 seconds sound clip from the Joe Dirt (2001) movie soundboard.
You can hear this line at 01:05:30 in the Blu-ray version of the movie.
Quote context
[...]
- That's why Dad named you Joe Dirt instead of Nunamaker!
- That's what my sister said on the way to the Grand Canyon.
- My last name's Dirt, her last name's Nunamaker!
- That's my parents' last name!
- I checked my list of Rambler wagons, and there it was, Nunamaker.
- Sir. Hey, Mister, you know the people who live here, Nunamaker?
[...]