calico dick
A Penis that displays loss of natural skin pigmentation or appears discolored or spotted.  
"That Jill Kelly Scene is great where she gives head to that dude with the calico dick"

"Dude she seriously swore to me that the calico color of this dick made it taste better!"

"Boy to father - Dad you're so awesome, I hope one day I will grow up to have a Calico Dick just like you've got"

"Calico Dick comes in handy for hiding your identity better while using a glory hole."