The Gizmo Share definition Flag The act of caressing one's own taint for sexual stimulation.- The taint is the area between the scrotum and anus. After a half hour of giving himself The Gizmo, Dino-Dan is absolutely smitten and ready. The Gizmo by Jay Fag September 11, 2009 0 0 Get merch Get the The Gizmo mug. Buy Now — $32.95 See more merch