In theory you can do this, yes. However, we highly recommend that you switch up your pin descriptions for each new pin. It doesn’t have to an entire paragraph that you change, but even replacing 4-5 words should be enough.
The reason why you want to avoid repeating the same description over and over again is so that Pinterest doesn’t mark your content as spam. (which can lead to account suspension in some cases).
Feel free to use our Pin Tracker to create and track multiple versions of your pin descriptions.