Abbreviation for Cyber Displays of Affection. Similar to PDA but instead is broadcasted online for all to see on sites such as Facebook, Myspace, and Twitter.
Example: What's with all the CDA on Facebook? I just saw Johnny's status update: "I can't wait to get home and kiss my beautiful wife!" And Mary's says: "I'm in love with the man of my dreams!" It's just as bad as PDA.