The act of neither confirming nor ignoring a facebook friend request, thereby leaving the friend request that is "awaiting confirmation" hovering in your friend request box indefinitely, leaving the requester completely powerless.
Janie: Hey, did you ever respond to that friend request from Kathleen?
Elena: No way! I totally nonfriended her. She can keep waiting.
Janie: Nonfriending is the only way to go with that crazy bitch. You wouldn't want her to facestalk you anyways.