Improper use of "enormity" may result in having one's skull stomped flat by a venomous T-Rex ridden by an overmuscled, baby-eating Nazi in a silver lamé uniform, playing disco at high volume on a bad boombox.
If something is hugely ginormous, it
If some thing or act or entity is boundlessly or outrageously wicked, it may well be an enormity.
Don't confuse 'em. Little Rolfie and his thunder lizard, they tend to jump the gun. Oh, the enormity!
Thanks to Charles Pergiel for the correction!