It's official.

We can now add "centennial" to the list of terms that President Trump doesn't understand the meaning of.

While signing the Women's Suffrage Centennial Coin Act on Monday at the White House, Trump commented:

"I'm curious why wasn't it done a long time ago? And also, I guess the answer to that is because now I'm president, we get things done."

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Celebrating the 100th anniversary of the ratification of the 19th Amendment, which gave women the right to vote back in 1920, the bill directs the U.S. Treasury Department to mint up to 400,000 $1 silver coins, which will debut in January of 2020.

In his attempt to toot his own horn, Trump clearly missed the entire meaning of a "centennial." Having recently laid into who he termed the "do nothing Democrats," Trump decided this was another opportunity to prove that he could get things done where they failed.

But, sadly, this was clearly not the appropriate moment.

Either way, it led to yet another hilariously cringeworthy gaffe from the President, which Twitter immediately pounced on.

Also dragged? The centennial coin itself.

But are we really surprised that Trump signed a bill that has to do with minting money?

Now all we have to do is wait until Dictionary.com trolls him by tweeting the definition of "centennial."

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The book The Best Words: The Collected Wisdom of Donald J. Trump is available here.