Crunk-Core
Art Rock
Pornocore
Christian [insert genre here] (i.e.; christian ska)
Avant-Garde Metal
Speed Garage/4x4 Garage (????)
Caveman

Jesus christ on a stick, it's fucked up that we have genres named like that. But, due to the success of this migraine-inducing trend, I eventually have decided to make up a couple sub-genres of my own...

Mustache Punk - To be considered a "Mustache Punk" band you must first have a mustache... that's pretty much all there is to it.
Lemon-Lime Metal - It's a Metal genre that fuses Country elements. So you must use a distorted banjo as opposed to a guitar.
Experimental Chocolate Mountain Ska - Basically Dubstep and Ska if you put them in a blender while watching an episode of "Friends".
Fuck-Core - (This is only a live concert trend) While playing your instrument(s), you must engage in serious sexual activity while you play.