An Asshole in a ball cap. A miserable unhappy jerk who is less than pleasant to his girlfriend...wears ball cap to hide the big donkey head that is attached to his fat human body.
Any town, any time, any place USA you can find some dude acting or looking like a cap dick.
A man who messes around with other men, but no one would ever know by looking or talking to him. Used by gay black men to identify masculine gay men or DL Brothas.