Let me think...Everything remotely palatable is game for me so I don't have a very specific food I hate.
The worse thing that I would think about eating is
Tofu skin (I hate the strong smell and the slimy texture, but I could be coaxed to eat some if needed
),
fried rats (no way I'm eating something so gross, and I did try scorpions and grubs before).
I love heavy smelling stuff like blue cheese, kimchi,
durians(damn tasty stuff, I can say), century eggs, shrimp paste, and of course some ole' Limburger goodness
so I don't get why I hate the tofu skin though.
Note: I'm a standard-sized guy, and without a spare tummy although I love to eat. Edit: friedcat, I haven't tried testing some fried cat though - I don't eat domestic pets.