When a doctor needs to visit a patient, but he is being blocked from doing so by another doctor, who is consulting with the patient for a long period of time, especially with that patient's file under his arm.
I couldn't see my patient because I was being doc blocked by that lollygagging Cardiologist.
when a doctor wants to keep you from going outside their financial (i mean "medical") group.
I went to get a second opinion on my illness, but I was doc blocked when my primary care notified my insurance.
When working on a google docs documents, your fellow group members change the permissions of the document, thereby forcing you to only view/comment on the document.
Dude, I only checked my facebook for 1 minute when BAM, my group started to doc-block me.
to have your team's offense completely and utterly paralyzed by Phillies pitching-phenom Harry Leroy "Doc" Halladay III. To strike out against Roy Halladay.
Fan 1: "Did you see Roy Halladay pitch his perfect game against the Marlins in May?"
Fan 2: "Hell yes! The Fish got doc blocked!"
or
Fan 1: "Holy fucking shit, Roy Halladay pitched a no hitter against the Cincinnati Reds in his first post-season appearance!"
Fan 2: "DOC BLOCKED!"
The act of being cock-blocked that it so artful that it has gone to the professional level.
"Damn, I got cock-blocked by a dude who must have a PhD in that shit."
"Dude. You just got Doc blocked!"
When the US government seizes a torrent or peer-to-peer website, thus rendering its services obsolete.
The US government seized my favorite torrent website...total doc block.
Variation on the phrase cock blocking where a doctor is prevented from carrying out a medical procedure usually due to a hospital administrator or lack of patient consent.
"I was going to try the new experimental treatment but the patient's parents are totally doc blocking me."