adj. A feeling all can relate to yet few can define. Yes, that's a cop-out. So's your face.
Real citation: "@wordlust just things, the other ones make me feel all jiggyzigglewinky"
(June 5, 2010, Elana, Twitter, http://twitter.com/vuelacara/status/15516029721)
Made-up citation: "I haven't felt jiggyzigglewinky all year. Should I call my doctor?"