2) Due to the Darrin's height disadvantage, his penis will occasionally drag on the ground as he walks. In the case of an erection (sometimes refered to as a Nathan), decreased brain funciton is a common result as there is not enough blood for both the brain and penis
"I know dude, he's a total darrin"
"shit, there goes my Girlfriend!"
2)"where did all the blood go?"
"to my penis, where it belongs"
3)haha, that Darrin just fell over cause of his huge Nathan