The third Monday of February is known as Presidents ’ Day in the United States . From Teddy Roosevelt's lunatic fringe to Joe Biden's malarkey , the words and phrases said by U.S . presidents are often as unique as the American experience . “We're really creating our own institutions through language ,” said Paul Dickson . He is the writer of Words from the White House : Words and Phrases Coined or Popularized by America's Presidents . If you coin a word or phrase you create it . Thomas Jefferson , America's 3rd president , is said to have created more than a hundred words . One of the words is authentication – the act of proving or showing something to be true . It means to have extreme affection for all things English . The ending -mania means to be crazy about something . Abraham Lincoln , the country's 16th president , is known for making powerful speeches during the Civil War . One of his best-known phrases , "A house divided against itself cannot stand ,” is drawn from the Bible . Historians note that Teddy Roosevelt , the 26th president , was the first president to use media to connect with the public . And he added several memorable words and phrases to American English . Dickson says , “Teddy Roosevelt creates this huge body of slang .” The words include pack rat , loose cannon , lunatic fringe , and bully pulpit – among many others . A loose cannon describes a dangerous and uncontrollable person . Lunatic fringe describes people whose opinions are extreme and different from many others . And a bully pulpit is an important position , such as the presidency , that provides a chance to instruct , lead , or inspire others . In addition to slang , some presidents created slogans . A slogan is a short phrase used in advertising or political campaigns to get attention . The 29th president , Warren Harding , gets credit for coming up with the term Founding Fathers . This describes the creators of the U.S . Constitution . Before Calvin Coolidge , the 30th president , no political campaigner had ever called himself a law-and-order candidate . This means they support police efforts and enforcement of laws . He is also famous for the saying , If you can't stand the heat , get out of the kitchen . Sometimes presidents changed names to better describe their purpose . Roosevelt who changed the name of the ‘Report to Congress ’ to the State of the Union .” However , Franklin Delano Roosevelt , the 32nd president , brought criticism when he said , “Well , it's pretty iffy as to where the Supreme Court stands on this .” Iffy is another way of saying something is uncertain or unknown . His critics felt that the American president should use “proper ” English . But then he was criticized for using the word finalize in a speech . By adding -ize , he turned the word “final ” into a verb . Dickson says necessity is the reason presidents continue to create new words . There was a solid majority from Richard Nixon , the 37th president . And Barack Obama , the 44th president , used shovel-ready to describe public work projects that were ready to start immediately . When Joe Biden , the 46th president , ran for the White House in 2019 , his campaign slogan was no malarkey . Malarkey is believed to be an expression often used by Irish Americans to describe insincere or meaningless talk . And that , my friends , is no malarkey .