Acronyms dictionary HYU What does HYU mean? HYU is slang acronym meaning hit you up. It is used in both texting and on social media. It's the counterpart to HMU (hit me up). Examples of HYU Just because I hyu don’t mean I miss you @cilbcil, November, 2017 If I hyu in any way wishing you a merry Christmas & I get no response by the time this day is over please feel free to never hmu ever again @Baddiee_Me, December, 2016 if I have to be the one to hyu first 24/7 for us to talk or hang out then I guess we not doing either cause I’m done with that. y’all be taking people for granted and only coming to them when you need something. @a1iyahh, April, 2018 SEE MORE EXAMPLES Just Added shelfie, ACAB, yeet, Karen, BIPOC Note This is not meant to be a formal definition of HYU like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of HYU that will help our users expand their word mastery.