Like or indicative of a redneck or rednecks; rural, uneducated, unsophisticated, etc.(adjective)
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Use "redneckish" in a sentence
"Many of us felt the same way about Bush, but we didn't act tacky and redneckish."
"What's really annoying is the NYT coverage of Wisconsin, which seems to be limited to sex, corruption, and drinking, with a salting of stereotypes from Praire Home Companion, which many actual people in Wisconsin find condescending and redneckish."
"As I jump and whoop and leap in a redneckish way across the stage, Jack plays the drums like a wild man."