That's close
but I think cockdocking (the dotcom is really not sfw) is putting cock A into the foreskin of cock B.
I think the video is talking about the more extreme form though, and the writers clearly haven't spent as much time looking for porn as I have.
edit: cockdockers is the dotcom you don't want to see
(
LP, Wed 25 Feb 2009, 22:13,
Reply)
it seems that
the first link of "Sites in brief" from newsletter 110 is along the expected lines
www.b3ta.com/newsletter/issue110/
(
LP, Wed 25 Feb 2009, 22:19,
Reply)