In Trash Humpers, the latest slovenly, haphazard, is-it-a-travesty-if-it's-bad-on-purpose avant doodle from director Harmony Korine, three figures in rubbery old-age makeup do indeed mimic intercourse with Dumpsters. They also dance, smash television sets, deliver nonsense monologues in redneck accents, cook and eat awful-looking pancakes, and chant the annoying mantra ''Make it, make it! Don't fake it!'' It's no accident that Korine's visual style mimics that of a scratchy old VHS tape. There's a name for the genre he's now working in — it's called glorified public-access TV.
