Watch the String Skipping online guitar lesson by Chris Buono from 60 Electric Guitar Techniques You MUST Know
String skipping invites you (no, begs you) to play wide interval licks. Exactly like it sounds you're literally skipping strings. For example, starting out on the 5th string you play an ascending three-note-per-string sequence and then skip over to the 3rd string for the next three-note-per-string sequence followed by the 1st string. That's string skipping.
Looking for inspiration? Check out Paul Gilbert's terrifying (his word) performance on "Get Out of My Yard" from the album of the same name. It just doesn't get better than that. To start down the road to playing like Paul, kick off your journey with Guitar Gym: String Skipping