soft dock 

When two flaccid, uncircumcised penises meet in such a fashion that the foreskins intermingle in to one dually attached mass of penis. This is also referred to chinese penis cuffing.

Shuttle - "Slowing to docking speed"

Space Station - "the skywalk is extended"

Shuttle - "Approaching"

Space Station - "Soft dock achieved"

soft dock by bparkzd00d August 30, 2013

soft docking 

When two guys, gay or straight, slap their flaccid penises together.

Dale: “Dude, we should soft dock right now.”

Pete: “Totally. Soft docking and cryptocurrency are my two favorite things!”

soft docking by Fun Dilly Dilly January 2, 2018