4. Last House On The Left (1972)
Krug, Weasel and Sadie - three unwholesome criminal reprobates - abduct two teenage girls - Mari and Phyllis - who are on the search for cannabis. They bring them into a woody area near Mari's home and proceed to humiliate and degrade the girls, forcing one of them to wet herself and initiating lesbian action between them. The most disgusting scene in Last House of the Left comes whenever Phyllis is stabbed by Weasel. In a moment of utterly gratuitous horror, Sadie gleefully shoves her hands into Phyllis's stab wounds and pulls out her intestines. This is just pure vileness on the behalf of Sadie, who marks herself out as a sick, bloodthirsty animal. There is even more vomit worthy moments in the film such as Krug carving his name on Mari's chest, but Sadie's intestine pulling is the sickest moment in the movie - it's a bit over kill by director Wes Craven.