A handshake you do with a good friend when you have a happy or "fluffy" moment. In order to do this handshake you must form a fist with your hand and make sure it is covered with some sort of cloth, such as a long sleeve. Your partner must do the same thing with your fist. Next you and your partner must rub your fists gently against each others while saying fuzz fuzz in a soft and content manner.
Bill: YO BOBBIE.
Bob: BILL <3
Billy: Shall we fuzzfuzz?
Bill: Yes dear friend. We shall.