Originating from the initials of a renowned technical wizard, the term AC is used when describing feats of legendary accomplishment.
Person 1: Oh, so how good of a job did that guy do anyway?
Person 2: Mate...This guy whipped out an AC out of nowhere...this guy is the real deal
Person 1: No kiddin' huh? Man, I gotta buy that guy a beer
Person 2: The fact that you'd buy him a beer and not the entire keg offends me good sir
Person 1: Apologies, i don't know what got into me