spider geek Share definition Flag A tall,lanky, gangly geeky person with big arms and legs like a spider. Someone who looks like Stretch Armstrong. A: Why is spider geek not coming out on the shot tonight? B: He's changed spider geek by themanwithnotan July 23, 2006 0 0 Get merch Get the spider geek mug. Buy Now — $32.95 See more merch