What was Boyle gonna fill Jake's saboteuer's eye sockets with?

In s2 e19, Boyle says that when he finds out whoever is sabotaging Jake, he's gonna rip out their eyeballs and fill their eye sockets, but he is cut off before he says with what he will do that. What is he putting in their eye sockets? Also, what else would he plan to do?

I'm guessing that the thing he's putting in the eye sockets is the spicy whiskey from his engagement to Vivian.