Sorry guys, should've explained the term.
OG is correct. It's a strategy where the Red Army immediately pulls back on a large scale to deny the Germans any large encirclements in '41. And yes, the name derives from the "brave Sir Robin" character from Monty Python. It can be very effective, if done right.
"...late afternoon the Air Tasking Order came in [and] we found the A-10 part and we said, "We are going where!? We are doing what!?"
Capt. Todd Sheehy, Hog pilot, on receiving orders during Operation Desert Storm