anti-sauce

A.K.A Blue cheese sauce

The anti-sauce fools many by looking similar to ranch dressing but having a different and unwanted flavor. Since the food now has a disagreeable taste and texture most times it ends up being dumped in the garbage.

Joey says "Aww man I thought I was putting ranch on my salad it turned out to be the anti-sauce".
Bill responds "Sorry to hear that but all you can do now is toss it out".
Joey sighs and says "I guess I just wish they would label the dressings clearly".