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1. The ability to predict one's future sexual endeavors by examining set individual's creases near the head of the penis.

Those who have been circumcised have lost this ability.

2. When a male is dancing with a girl and becomes hard in anticipation of a future sexual encounter

3. Dick wrinkles
Woah, these dick wrinkles are strong foreskin-shadowing.

His premature erection was foreskin-shadowing of things to come.
by theprehnmantis October 31, 2010