anal gaper Share definition Flag A guy that has an unhealthy obsession with turtlenecks who enjoys playing DnD and being cynical. OMG Nathan that turtleneck makes you look like such an anal gaper. anal gaper by chunymunkeysexymuffin July 27, 2016 0 0 Get merch Get the anal gaper mug. Buy Now — $32.95 See more merch