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Use "knuckle-dragger" in a sentence
"In essence, he'll mimic his supreme leader, Sen. Jim DeMint, the deranged knuckle-dragger from South Carolina."
"He is merely a slack-jawed knuckle-dragger who has gained noteriety by shouting, p1ssing, moaning, conflating, fabricating, lying, misrepresenting and brow-beating."
"The only answer you have to people who disagree with immigration is to use the same bullshit you always use as an answer - "you're a racist", "you're a white supremacist", "thick knuckle-dragger", etc, etc."