Anything but canon
(covers information that is anything but canon)
Conjuring was supposedly the mystical act of magically summoning supernatural creatures, generally spirits or demons.
According to an account that was anything but canon, when the USS Enterprise was under attack by a number of D7 class battle cruisers, Spock informed the captain that the ship couldn't take much more hits, but the captain was concerned about giving the crew orders, because every time he's about to make a command decision, he seemed to conjure up a person to become angrilly offended by it. (VST: "Skin a Cat")