Back in high school I raided my parents liquor and mixed everything I could find into a bottle. Rum, vodka, red and white wine, whiskey, various cocktail mixes, and even some dirty old beer. Probably the grossest thing I have ever consumed but man did I ever get drunk.
Slim jim that I got from my father for xmas that went bad from the due date 6 months before. I got food poison and I'm a dumbass for eating the whole thing. He wouldnt take me where he got it and is not allowed to gift me food ever again.
Jelly Fish. As a kid. Traveling Asia with my parents. At a restaurant in Hong Kong. Stole a fork of butter noodles of the plate of my mum. Delicious. "How do you like the Jelly Fish dear?". Grossest revelation ever. I was not prepared. Got over it quickly though. Jellyfish makes for an awesome substitute for noodles.
I forgot to bring Patrick this at the meet up in Iceland but something else that is a tradition here is this: Testicles of rams pressed in blocks, boiled and cured in lactic acid. It's too sour for my taste.