Squiggy
n.— «“a Squiggy” or “the “hello’ gag”: From Laverne & Shirley. Can only be defined by example. Laverne (crossing to door): “What sort of degenerate freak would agree to that?” Squiggy (door opens): “He-looooo.”» —“Writing: Jargon Preservation” by John Rogers Kung Fu Monkey Apr. 15, 2005. (source: Double-Tongued Dictionary)