I "get" that indie films can sometimes be unconventional in ways that leave viewers bewildered, uncomfortable, unimpressed or otherwise dissatisfied, but usually there is a point to such films that even a dissatisfied viewer can appreciate. I do not think that "The Slut" has such a point.
The pacing is mostly plodding. Sure, rural life plods along most of the time, but the screenwriter's/director's choice of how to reflect this seemed contrived, and made the 86-minute film seem much longer. For example, at one point a character loses a few items from the back of a vehicle. The character retrieves those items, slowly. Then, the scene cuts to a wide-angle shot, lingering on the stationary vehicle and the surrounding landscape. To me, this felt like directorial laziness -- "Viewers, ruminate over the ostensibly humdrum scenery, and eventually realise its bleak grandeur!" -- rather than inspiration. But perhaps I've seen too many films employing this kind of padding, and others will feel an awe that I did not.
There are also two key incongruities that detract meaningfully from this film. For a film that mostly skims over plot and relegates dialogue to a few mumbles, the sex can be quite graphic, with male genitalia often presented in full view (and turgidity). Although I imagine that the sex is not intended to titillate, I wonder why it seems to be the most real thing in an otherwise mostly unreal project.
Secondly, the film's climax, though probably intended as a twist, comes across as completely unbelievable.