Fourteen Words

Save the Aryan race. Procreate with your sister, mother, aunt, and if necessary, grandmother. The Fourteen Words is a White nationalist phrase which refers to one of the following 14-word slogans:
 * We must secure the existence of our people and a future for White Children.
 * Because the beauty of the White Aryan woman must not perish from the earth.

The slogans were coined by noted racist David Lane in reference to his 88 Precepts and "pyramidprophecy". Thus, white supremacists will sometimes combine "the 14 words" in reference to the excerpt in the phrase "14/88" or "1488". It is sometimes claimed the first set of 14 words was inspired by an 88-word passage in Volume 1, Chapter 8 of Mein Kampf but neither Lane or his publisher Fourteen Word Press ever made this association and it is probably a coincidence.

"88" has dual meaning as it also is used to reference H as the 8th letter of the alphabet, and thus the 88 can also be used to stand for HH, or "Heil Hitler".

Political use
Virtually every Neo-Nazi, white supremacist, and white nationalist has used this slogan or a variation of it at some point as well as their ideologies (of course white-centric) being based on this motto.

Hungarian far-right (though purportedly not Neo-Nazi) party Jobbik often uses the numbers 14 and 88, such as publishing their program for the 2010 elections in 88 pages and having their party headquarters' phone number be (+36 1) 365 14 88.

The white separatist, white nationalist organization Northwest Front and Neo-Nazi Harold Covington use the 14 words in the preamble of the Northwest American Republic Constitution which reads as:

In January 2017, Ann Coulter posted a tweet saying only "14!". This was widely interpreted by alt-right Twitter users, as well as liberal observers, as a dog whistle referencing the Fourteen Words and openly identifying herself for the first time as a white nationalist. Coulter later tweeted that she was counting down the final days of Obama's Presidency, but that doesn't seem to be true because 15 days were left in Obama's Presidency, not 14.

In June 2020, Donald Trump's campaign ran 88 ads on Facebook fearmongering about Antifa, with the first sentence being 14 words long, and along with a Nazi Symbol for political prisoners (an inverted red triangle). While the use of a sentence that was 14 words long in an anti-antifa ad that ran 88 times could be coincidence by themselves, their occurrence with a symbol used in Nazi concentration camps that is not associated with Antifa indicates that this was an intentional dog whistle paid for by the GOP and associated directly with Trump and Mike Pence accounts. Notably, the Trump campaign had previously used an antisemitic dog whistle ad in its 2016 presidential campaign.