just fell off the turnip truck

fall off the turnip truck

To be gullible, naïve, or unsophisticated. The subject is often a person from a rural or rustic background. Mary has no idea about how to act in polite society, always behaving as if she just fell off the turnip truck.
See also: fall, off, truck, turnip
Farlex Dictionary of Idioms.

just fell off the turnip truck

Rur. ignorant; unsophisticated. He stood there gawking at the buildings in town like he just fell off the turnip truck. My cousin acts like she just fell off the turnip truck.
See also: fell, just, off, truck, turnip
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • fall off the cabbage truck
  • fall off the turnip truck
  • turnip
  • greenhorn
  • a babe in arms
  • babe in arms
  • babe in the woods
  • babes in the wood
  • a babe in the woods
  • I wasn't born yesterday
References in periodicals archive
Does Murray believe we just fell off the turnip truck?