What is the meaning of xx in texting?

Read also:

• Federal Reserve official Michelle Bowman calls for interest rate cut as soon as July - Financial Times
• Is it true that all men want a woman who looks like an Instagram “model”?
• The Apple AirPods Pro and AirPods 4 Drop to the Lowest Prices of the Year for Father's Day - IGN
• Nutritionists Reveal the Surprising Amount of Protein You Actually Need - AOL.com
• A Massive Particle Blasted Through Earth and Scientists Think It Might Be The First Detection of Dark Matter - ZME Science
• Kroger faces massive worker walkout, closed stores - TheStreet
• What's the funniest thing you heard in a movie theater?
• Tesla is forced to remove 64 Superchargers on NJ Turnpike, Musk claims ‘corruption’ - Electrek
• Discovery of a Lifetime: Student Discovers Ancient “Living Fossil” Underneath Rock - SciTechDaily
• Does red light therapy do anything inside the body, other than just the skin that receives the light? Are there any obscure health benefits?
• RKF Jr. May Have Just Ruined Our Best Weapon Against Bird Flu - The Bulwark
• A kid threw a stone at my car. I confronted his mom (who was nearby). She said, "You can't prove it was my son." How should I have reacted?