the act of covering another man's penis with his foreskin. It is a strictly cock-to-cock act where at least one uncut penis is required. Those who can participate in this act are men and hermaphrodites. Being gay or homosexual is not required, though it can make the act much more satisfactory.
Two men who want to try docking, but both are circumcized. Man number one gets hard and puts a condom over his cock. He then pulls the tip of the condom outward and carefully cuts the end off with a scissors, thus creating a mock "foreskin". Man number two, puts his hard on into the end of the rubber, pulling it over his shaft and going tip to tip with man number one.
They can then jerk off, jerk each other off, etc, until one or both ejaculate.