The process of sneaking up behind somone or beside them, hugging them and screaming "sneak hug!" as soon as you do it.
Dr. Cox: Nothing ever changes. The Artist Formerly Known as Prince is still just Prince, my ex-wife is still pretty much my wife, 'Grey's Anatomy' always wraps up every episode with some cheesy voiceover that ties together all of the story lines, which incidentally is my least favorite device on television, Newbie continually will try to violate my no touching policy, and Republicans will forever try to raise-
JD: SNEAK HUG! (sneak hugs Dr. Cox)
Dr. Cox: ...Of course, I would go kill him right now, but he actually just helped to prove my point.