Mate, there are a ton of threads on this (So many it may deserve its own list;))
Mothman or Specs might direct you to Horrorbrains list, which I have no opposition to.
On it, you'll find stuff such as:
August Underground's Mordum
murder-set-pieces
Men Behind the Sun
Irreversible
Cutting Moments (see
The Unsung, the Underappreciated & the Bizarre: The Other HDC Top 100)
Genesis/Aftermath
Guinea Pig: Flowers of Flesh & Blood
Yet there are still other depraved pieces of cinema that you can watch, such as:
Slaughtered Vomit Dolls
Begotten (see
The Unsung, the Underappreciated & the Bizarre: The Other HDC Top 100)
The Baby of Macon
Salo: or the 120 Days of Sodom
Nekromatic
Butterfly Kiss
The Untold Story
Squirmfest
Enjoy, and hope you get the throw-up-a-little-in-the-mouth action you're looking for!