The most powerful black magic spell in the anime series Slayers, excepting the Giga Slave. This spell calls upon the power of the dark lord Shabranigdo. The spell's original name was "Dragon Slay," but over time, "slay" became corrupted into "slave." The spell is powerful enough to destroy a fair-sized city. For this reason, pissing off short, small-breasted sorceresses is not advised.
"Dragon Slave" can be used as a verb to mean "to destroy with a Dragon Slave spell." "Dragon Slaved" is an adjective to describe a person, place, or object which has been destroyed with this spell.
There used to be a town where that crater is, but it was Dragon Slaved shortly after this short girl and her weird friends came to town.