XXXX definition: Sometimes 4X extra-fine confectioners' sugar.. See examples of XXXX used in a sentence. Listen to XxxXXXXXXXXXXXXXXXxxX on YouTube Music - a dedicated music app with official songs, music videos, remixes, covers, and more. In letters and text messages, xxxx symbolizes a series of kisses, used as an affectionate sign-off or goodbye. Share your videos with friends, family, and the world Download and use 119,363+ Xxxxxxxxxxxxx+video stock videos for free. Thousands of new 4k videos every day Completely Free to Use High-quality HD videos and clips from Pexels