sportsherald. 2 votes Vote for this answer. Another name for a wing dam is a groyne: 'River groynes (spur dykes, wing dykes, or wing dams) are often constructed nearly perpendicular to the riverbanks, beginning at a riverbank with a root and ending at the regulation line with a head.
The foreskin (also known as the prepuce) is a portion of skin on the penis that covers and protects the tip of the penis, also known as the glans. It can be a tough world for a glans -- there's abrasion from undergarments, cold winter weather and dry air.
1 Make it difficult and painful to retract the foreskin to expose the tip of the penis (a condition called phimosis) 2  Make it difficult to move the foreskin over the head of the penis (a condition called paraphimosis) 3  Affect the blood supply to the tip of the penis.  Increase the risk of penile cancer.