foul, rancid, bitter, or otherwise unpleasant to the palate; disgusting; poor flavor
cook1: "Ugh, this stew tastes like ass."
cook2: "I'll say. It tastes like old cayenne pepper steeping in hot Guinness."
cook1: "I think I'm going to be sick."
cook2: "Me, too."
By Cher
Tastes Like Ass!
A culinary term used in kitchens by cooks. It refers to something tasting awful or a recipe / dish not made skillfully!