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A Cock drawn in a dirty car window. These finger painted cocks are usually applied to the dirty windows of a friends car, but also appear on any dirty surface.

Shadow Cocks can be hidden on a side mirror or behind the rear view mirror or openly displayed on the side or back windows. Multiple shadow cocks are usually applied. On a station wagon the hearse shadow cock can be applied where a matching cock is applied hearse style on opposing back windows.
Oh look a dirty handicapped mini-van, lets shadow cock it.

D-Bag: WTF, why is there a huge cock on my back window?
D-bag's side kick: Uh... You got shadow cocked dude!
by ShadowCocker January 05, 2011