Pinhead in a Sentence 

Definition of Pinhead  

someone with low intelligence; implying that a small head results in a small brain

Examples of Pinhead in a sentence

Even though Carter is extremely smart, he can be a real pinhead when it comes to flirting with girls his age.  
My baby brother is such a pinhead, that he believed me when I told him an oak leaf would taste just like lettuce.  
Romeo was a pinhead who was far too quick to take his own life for a woman that he had just met a few days ago.  

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