killing boars
To take a methodical and systematic approach to completing a task. Cartman realized that he and his crew could stay in the forest killing boars in order to slowly but steadily accumulate experience points while hiding from "he who has no life".
Justin said, "Will you hurry up and finish pumping out that honey wagon?"
Steve said, "Don't worry, I'm killing boars."
Steve said, "Don't worry, I'm killing boars."