I'm gonna go with game genres, specifically roguelikes and rhythm-based games. They sound terrible together and yet, Crypt of the Necrodancer (and also Cadence of Hyrule) is the shit.
Peanut butter on bread with cheese duritos. Sounds weird, but taste amazing. Has to be the American duritos, other countries don't taste the same for some reason
"It consists of a single warmed, hollowed-out loaf of bread filled with the contents of one jar of creamy peanut butter, one jar of grape jelly, and 1 pound (450 g) of bacon."
I always hated the idea to put beans and bananas together. It is a fairly common habit in my country, tho, but it's a no-no for me in general.
But once I tried a Nigerian dish that had beans, bananas, shrimps and pepper and I absolutely fucking loved it. Seriously, the flavor was from another world.
Bacon milkshake. Got to make sure the bacon is cooked proper to get some nice crumbles and it adds an amazing salty savory that really makes the milkshake flavor pop. Doesn't work with all flavors
Not sure if all peanut butter variants are sweet? The only ones I have tried tasted savory, and some even felt somewhat salty. Maybe some have sugar added to them?
A shower and an orange. You can just devour that orange like a caveman without worrying about the mess. Shower beer is good too, just because it is nice to have a cold beverage under a hot shower.
Not sure if it was a worldwide thing or only in my country, but there used to be a Coke/Coffee blend we had here. It sounds terrible but I absolutely loved it, they stopped carrying it a year or two ago though.
Ketchup-flavored pringles is also apparently not a common thing in other countries, but it is the best flavour.
It's a common add-in with some Tiki drinks with juices including pineapple, orange, passion fruit, and lime. When my SO makes something, he'll commonly toss the excess volumes into a glass sans alcohol for me to enjoy.
We used to have a dude in our college dorms who used to sell Cup of Noodles with a spoon of peanut butter inside for like 3 bucks. It's a GREAT and cheap meal after those late nights at the bar.
A pickle back! Pickle juice chaser with a shot of Jameson. i thought a pickle back was the most disgusting sounding thing until i tried it. it's a fantastic chaser for a shot of whiskey.
I ordered one once and the waiter didn't know what I was talking about so I just got a beer. He comes back later with a big smile on his face holding a glass with some liquid in it saying he brought me a pickleback. It was premixed. I shot it, it was a lot of liquid, and only once it was in my mouth did I realize they had used bread and butter pickle juice.