Is "kangaroo pocket" going to stand the scrutiny of semantic investigation? The term has survived so far, but when you find out the marsupial's pouch opens horizontally, the hoodie storage designation may not hold up. Location-wise, the nomenclature is valid: the pocket on the North Face HD PO Pullover, for example, is in the right spot, but the hole's a pass-thru double-ender. An open-ended tube. It's fun to say, though. "Kangaroo pocket." Only time will tell.