When I coined the term 40+ years ago, it was meant to mean acidic sarcasm, or sarcasm that goes beyond the merely intellectual attack to a more visceral one that is defined by the difference and the level of attack.
Definitions include: The ABSOULTE WORST thing you could call anyone; It is WORSE than a bitch,a cunt, a dick , an asshole , a punk-ass mother fucker. IT IS THE EXTERME WORST , EVER!!!! word used in a sentence; "Wanda is such a SCHRICH"!!!!