Whistlequist Share definition Flag One Who Can Perform 2 Parallel Whistles With Oneself Dude, Turtle is such a whistlequist for the simple fact that he can whistle to himself. Whistlequist by Hey Boo Boo January 12, 2009 0 0 Get merch Get the Whistlequist mug. Buy Now — $32.95 See more merch