Ogregasm is an incomplete/planned episode leaked on ShrekChan a few days before ShrekChan was deactivated. It has been reposted on PigChan.
The plot revolved around Shrek and Cory, both of whom wanted to try Shrex for the first time. They try to find a private place, but keep getting interuppted. It is unkown if they actually do have Shrex in the end, since the storyboard remains unfinished.
Some early footage shows that Shrek is animated in this episode, because Shrek was sick with the flu.