2003, "Whine Line", Metro Spirit, 20 February 2003, page 7:
To the person who complained about the “ignorant ramblings” of the “smooth-brained bigot” Austin Rhodes: Be careful. The Good Lord knows that the vast and overwhelming majority of intelligent-thinking good ol' boys in this town believe in him.
2015, Katie Jackson, "The Gambler", Writing Book 2015 (California College of the Arts), page 120:
When their soldier husband returned from war, he would likely find himself in the company of a genuine, smooth-brained woman who had gained weight, and a joint bank account would convince him to stay with her.
2018, Collin Yeo, "Preach, Manic Street Preachers", North Coast Journal, 22 February 2018, page 25:
All because a group of the wealthiest people on the planet since the pharaohs have convinced a bunch of smooth-brained rubes that “well-regulated” means that nearly everyone can get their very own murder machines.
Every so often a poll will come out that says something like 3% of respondents had “little to no awareness of Donald Trump” and we tend to scoff in amusement at that sort of thing like, lol, must be nice. But I wonder sometimes about those people – those beautiful, smooth-brained and innocent children of god – whether or not they’re on to something the rest of us aren’t.
