If peanut butter and jelly stand for what is good in mixing flavors, there is an anti-PB&J out there. That one singular flavor combination that, whether created by accident or intentionally, is mouth-puckeringly bad. It's Fish-Chocolate or Sausage-Flan if a new campaign for dishwashing liquid, Ayudin, is to be believed [h/t I Believe in Advertising].
And while I have no doubt that the guys from Epic Meal Time will get there, I also believe that you've likely tasted the worst combination over a lifetime of sticking stuff in your craw. For me, I still remember the misguided summer dare of my 11th year on this earth, wherein I dipped a dill pickle in chocolate sauce. That sense memory still kicks up a little hitch and an echo of bile in my throat. How about it, what's the worst food combination you've ever had?