Regardless of how silly the the whole rescuing Han from Jabba plot is, it's over shadowed by another big question.

Which orifice of the Sarlacc do we see?

If it's a mouth then it must have some way of going to the toilet. Does the creature run the entire length of the planet and on the other side is there a hole for waste extraction?

If it's the creatures backside, then is the reason it takes 1000 years to digest its food because its going in the wrong way?

Or is it something more.... feminine shall we say?