Meaning

noun an acronym often used by soldiers in World War II: situation normal all fucked up

verb cause to be in a state of complete confusion

adjective snarled or stalled in complete confusion

originThe term was born during the Second World War as an acronym of the initials of the words situation normal, all fucked up, which summed up the chaos and confusion of the war from an individual soldier’s point of view.

Etymology from Wiktionary, CC BY-SA 3.0