Internet slang that consists of two letters that are intended to show the expression of extreme laughter. Usually used when someone tells an extremely funny joke or meme, but can't express their feelings because they're behind a screen. You don't see this often in 2021+ because most people type/ send emojis instead.
When someone does anal intercourse with a girl. Then after that they use the Penis they used to do anal to do vaginal. This leads to many diseases. This term is when specifically they do anal and when you hear the "clap, clap, clap" you know its anal and "xD"
Jerry: "I know we are just high schoolers but I wanna fuck Jessica"
Bob: "Fuck her with xD"
Jerry: "I dont want my dick in her ass"