The city folks treated him like a country bumpkin.
Are you going to the party dressed like a yokel?
百姓 is a more neutral term for farmer, though it can also carry derogatory connotations depending on context. 田吾作 is explicitly derogatory and emphasizes rustic simplicity.
田舎者 means 'country person' and can be derogatory, but is broader and less specifically tied to farming. 田吾作 is more narrowly a mocking term for a farmer.
Most common kanji spelling for this derogatory term for a farmer or country bumpkin.
Alternate kanji spelling; less common than 田吾作.
Rarely used kanji form.
The name 田吾作 (Tagosaku) is a stereotypical male given name associated with farmers in Japanese culture, similar to 'Hodge' or 'bumpkin' in English. The exact origin is uncertain, but it became a generic, derogatory label for a rustic farmer.