(Sorry for tmi in advance)
Mine are-
Cadbury chocolate tastes slightly like fish
Poo and farts all smell the same- rotten cabbage
Eggs taste metallic
Coffee tastes of gravy
Toothpaste tastes like a combination of mild curry sauce and a strange chemical. It also smells of chemical. The same chemical as washing up liquid. Not a chemical I've ever smelled before though.
Onions smell and taste horrendous