88 is a white supremacist numerical code for “Heil Hitler.”
H is the eighth letter of the alphabet, so 88 = HH = Heil Hitler.
One of the most common white supremacist symbols, 88 is used throughout the entire white supremacist movement, not just neo-Nazis.
One can find it as a tattoo or graphic symbol; as part of the name of a group, publication or website; or as part of a screen name or e-mail address. It is even sometimes used as a greeting or sign-off (particularly in messages on social networking websites).
It’s usually used in conjunction with the 14 words, so 1488.