You're A Feeder

Damon, had just helped Stefan rescue Elena, from an unknown vampire. Turns out, the vampire was an Original by the name of Elijah and what's worse, is that he happens to be alive! When Damon kills someone, he expects them to stay dead!

Now, why is this Original saying some bullshit, on Damon being something called a feeder, to counter Stefan being a Ripper?

Damon x Elijah x Klaus x Kol poly no incest.