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The Most Popular Slang Word The Year You Were Born

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2. 1947: Thunk
This photo is evidence that the word "thunk" is still in use today. But did you realize how old it truly is? Yep, thunk made it into the Merriam-Webster Dictionary in 1947. That is pretty crazy. 

And while this photo uses thunk as a slang word replacing thought, the term is also slang for a loud sound. We all still use thunk, especially to describe the sound something makes when dropped.