Fermented Baltic herring. Purported by some (but by no means all) Swedes to be a highly-prized delicacy. Asserted by everyone else to be rotten fish in a can.
A nearly rotten fishy/fish type delicacy that has fermented for at least six months and is usually packaged or sealed in a can and is often described as the smelliest food in the whole world.
“OMG I always thought it was the Garbage truck that smells awful, turns out it’s Makita and her unwashed Surströmming Taco. Can you tell her to close her legs because it’s making me sick”