1. to ditch, or thoroughly ignore someone by means of the webcam and instant messaging system, skype.
2. also can mean that your status is set to "online" when you are in fact away from your computer and can therefore not answer video calls or instant messages.
Bob - Hey, video call me on skype!
Joe - Okay. *Riiing. Riiiiing. Riiiing....*
Random onlooker: Duuude, you just got SKYTCHED.