What is carnage?

Some articles on carnage:

List Of Spider-Man (1994 TV Series) Characters - Other Characters - Gwen Stacy
... Spider-Carnage who wants destroy every parallel reality kidnaps her, threatening to everyone present if one of them follows him, she will die first before he destroys all reality ... Spider-Man then understands that Spider-Carnage is not truly evil as he is confused because in his reality, his Uncle Ben and Aunt May have died and he is believed to be a clone to the Scarlet Spider, also known ... failed at anything, Uncle Ben was still alive) and tells him everything about Spider-Carnage's plan ...