Yeah although calling it 'slime' is basically just trying to bring about associations with, for instance, rotting meat or vegetables (which often end up with a slimy texture) for the sake of shocking people and bringing in an audience of predominantly more well off people who "would never eat that".
So rather than give it a name which is deliberately off-putting it's probably better to give it something vaguely neutral and otherwise let it stand on its own merits, whatever they may be.
Regardless, we wrap literally everything else in shiny marketing nonsense. Using it to get people to eat the entire edible part of the animal rather than wasting it is kind of a win from an environmental POV. I mean arguably it'd be better if we just stopped eating meat, but that doesn't seem like it'll happen any time soon.
So rather than give it a name which is deliberately off-putting it's probably better to give it something vaguely neutral and otherwise let it stand on its own merits, whatever they may be.