Definition of "lugnut" [lugnut]

• A specially shaped nut used to hold the wheels on an automobile. (noun)

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• "After all, the woman spent her twenties raising a son without much help from her lugnut spouse."
• "And I thought we were through with the Kennedys, now we have this lugnut to listen to, heavens forbid."
• "Joe, I assure you, you have no problem with this lugnut howie"