What is the meaning of xx in texting?

Read also:

• In an interview Donald Trump said Taylor Swift could be a success in the music industry if she was not so liberal. What do you think? Is Trump correct that Swift is failing as a singer and should listen to his advice about her politics?
• See a young star potentially giving birth to a giant planet in new image from Very Large Telescope - Live Science
• How do you say "I don't speak Italian yet, but I hope to speak it well one day. It would be a pleasure to learn Italian with you. Would you like to teach me Italian?" in Italian?
• Trump leans on GOP senators as they gear up to make changes to his domestic policy bill - CNN
• Cole? Kyle? Whatever the name, M's thrilled to see Young arrive in majors - The Seattle Times
• What are some uses for cucumbers other than eating them plain or in salads?
• Is there any new American thing?
• While wearing high heels and walking heel to toe, when the toe box hit the floor there is a noise. How do I keep the noise just for the heel?
• Micah Parsons will attend training camp but won’t commit to participating without a deal - NBC Sports
• How can I remove decimals in math?