Asklemmy

Oyster. Anything with the consistency of snot that you're supposed to swallow without chewing isn't food. I can make my own salt water that tastes much less disgusting.

Any "big game". Moose taste like swamp.

Venison can be good if it's properly butchered and stored. It so often isn't though. People will shoot a deer then leave it to hang for a day in 50-60 degree weather. Just gross.

Bears are too greasy. And they're too smart, eating them is just bad karma.

A lot of game meat can be good, people just have no clue what to do with the processing side of it. They'll spend thousands of dollars buying the most ridiculous gear to kill the damn thing, and then just fail at butchering and preserving. Hunting is the easy part.

Crocodile can be a bit hit and miss. Supposedly ‘tastes just like chicken’ but there was an extra flavour I can’t describe.

Cockroach (if that counts) and rat.

An undercooked venison burger. I can't remember what it tasted like when I ate it, but coming back up it was very unpleasant

You said not lamb but lamb. Nothing will ever taste worse than the lamb steak I had from a high end Brazilian churrascaria once. It straight up had the taste and texture of poop. Thinking about it makes me gag.

That's also where I learned how much I hate filet mignon

camel

Perch and Catfish are pretty awful. Catfish more for the texture. Perch just tastes bad.

Uni (sea urchin) at a Japanese restaurant. It was like cold fishy jelly. Although I'm told that fresh uni is different. Not gonna try it again unless someone else at the table orders it.

Here I see a lot of people who have been served badly prepared game. For any meat that tastes too gamey, if you're not sure how to prepare it, there are some tricks that work pretty much everytime:

1. Make an infusion of ginger by boiling it for half an hour. Lot of ginger, the water must taste spicy. Then soak the meat in it overnight. It won't really live a gingery taste in the meat, so it's good for most preparations.
2. Don't roast, but braise. Red wine, juniper berries, rosemary, cloves, bayleaves, and laurel are good with most wild animals and musky meats: deer, wild boar, mutton, rock goat, etc etc. Sheepmeat and goatmeat can also go with a lot of cumin, turmeric, chili, cinnamon and cardamom, if you want a more central Asian vibe.

Venison, and for the same reason as lamb

I don't like muscles from the Puget Sound because they taste like it smells and I cannot get past that.

Gotta be possum. That shit is musky

I wasn't a big fan of goat

I tried kangaroo in Australia and it was not good.

Alligator. Venison. Duck. Butterfish. Trout. Mussels.

Presuming you mean meat I consistently dislike no matter if it's well prepared or in good condition: None. I would say beef and chicken but those were isolated instances and you removed them as options too.

Then... I don't know, every time I tried something else it turned out to be good. Once I had a codfish that wasn't well prepared. It was tough like a shoe sole and full of bones. But it didn't taste terrible, so I'm not sure if it's a suitable option.