1. The extra skin that covers a man's dick when he is uncircumcised.

2. The name for someone so awful that they are unworthy of being called a dick; someone less than a dick.
1. When I unzipped Nate's pants, I was so concerned when I felt his dickjacket!

2. Get the hell out of my way, dickjacket.
by unicornhorn October 13, 2009
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