"Wait, demons were responsible fur all magic?" Granted, whether magic even existed in her world was debatable. Psionics? Sure. Strange role-and-personality-based SGRUB powers? You bet. But magic? Iffy.

"Um, no. There were no demons on Alternia. Maybe that's why we didn't have magic?" They had referred to Jack as a "demon" at times, but that was just shorthand for "super-prototyped-pissed-off-dog-man-with-a-link-to-a-sun-of-incredible-power".

It was pretty obvious why they needed a shorter term.