A Spiderman is somebody who either speaks in a racist Indian voice, pretends to climb walls like Spiderman or is just a complete idiot. It also means Vegan in a tree
Person A: Hey dude, look at that weirdo!
Person B: Yeah, he speaks in a really racist voice. Look! He's trying to climb the wall. Stupid
Person A: You mean Spiderman, right?
Person B: Oh yeah! He's a Spiderman!
A sex move where the male and female are having sex in doggy style, The man quickly pulls out and cums in his hand, the female then proceeds to turn around to see why he pulled out early, when she does this the male "shoots" his cum out from his hand.