a cracker-barrel philosopher的用法和样例：
- Nothing prevents a cracker from doing this.
- Never mind what he says, he's a cracker.
- ANN: (chewing a cracker) For the orphans?
- Never mind what he says, he's a cracker .
- That of southern cuisine helps local restaurants, such as Waffle House, Cracker Barrel and KFC.
- She has mentioned him several times in recent days, from tweeting her plans to watch "Liar, Liar" and eat sushi with him to how she introduced him to the wonders of Cracker Barrel.