noun
rube
ROOB/rub/
An unsophisticated person regarded as easily fooled.
The uneasy visitor feels like a rube among the polished city diners.

Etymology
Reuben became a conventional name for a country man or rustic. Shortening that stereotyped name produced rube, a dismissive label for someone considered provincial or unsophisticated.
In context
I mean like a sucker, like like a Rube,
Yes, I was the naive, young person, the "rube" if you will,
More examples
- They dismissed him as a rube because of his rural accent.
- She resented being treated like a rube.
- The story follows a supposed rube who outsmarts the city slicker.
Forms
rube · rubes