I prefer, "neither do I" or "nor do I". For instance: Your friend: "I don't like turkey" You: "Neither do I" (or "Nor do") = I don't like turkey also (grammatically incorrect) = "+1" in response to a negative statement!

Igor, The word "either" is used in modern English after a negative statement to indicate that a situation is similar to the one already mentioned, or to add additional information using a negative statement. -If you do not go, he will not go either. -He didn't like the movie, and she didn't like it either -It's a problem he can't solve, and I don't think I can either. - I know a good fast food place. It's not far from here, either. The informal "me, either" is used in the following way to show that you agree with a negative statement: "She didn't like the movie." "Me either". It is the equivalent of saying: I also didn't like the movie. or I didn't like the movie either. Note: You cannot logically say, "I didn't like the movie neither." More formally you could use "neither": "She didn't like the movie" "Neither did I". -She didn't like the movie. Neither did I like the movie. Another informal possibility is, "She didn't like the movie." "Me neither"

You can say "me neither" if you also don't like something. for example ~i dont like this coffee ~me neither a lot of people use "either" in this situation but it is not correct