ninnyhammer

What Is A Ninnyhammer? noun. a fool or simpleton; ninny. How do you use Ninnyhammer in a sentence? Example sentences “Such a ninnyhammer, he totally fell for my April Fool’s joke.” “He’s always taking credit for things he didn’t do, the ninnyhammer.” Is Cattywampus a real word? Cattywampus is a variant of catawampus, another example