This quest is given by Snorgle Filthwallow after you complete the "My Friend, Snorgle Filthwallow" quest.
He asks you to kill the goblin with who is torturing the Warboars in Runneyeye. What you need to do is kill Runnyeye Torturers until the whip drops. It is a rare drop.
After doing this return to Snorgle for your reward.