The act act of one man rolling back his foreskin and allow another man to roll his foreskin over the first mans exposed penis head. the first man then rolls his foeskin overtop the other forseskin effectively locking the 2 penises together in a chineeese finger trap connection.
Matt and Damon got stuck in a double docking scenario where all peaople involved had a very good time.
refer also to docking
The act of two uncircumcised men placing the head of their penis's inside the foreskin of the other penis at the same time.
Patty injured his foreskin while double docking Wilke.