noun
a person who engages in deep or intellectual thinking, often characterized by stroking their chin in contemplation
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The literary critic was known as a chinstroker for his deep analysis of classic novels.
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My professor is a bit of a chinstroker when it comes to discussing philosophy.
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I can't stand those chinstrokers who act like they know everything about art.
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The politician's speech was filled with empty promises and chinstrokers.