to pinch someone REALLY hard, usually from behind. For best results, pinch on the spine while saying "Why, hello there!" with a Mickey Mouse voice and pinching on the word "hello".
Guy 1: "Sup', bro."
Guy 2: "Just chillin'."
Guy1: "Why hello there!" (and does a excruciating spiner)
Guy 2: "Wha-YEEEOOOOOOOOOOOOOWWWWWWW!!!"
Guy 1: "Heh. Heh."