Me either.

[sunsunmoon]

Definition and pronunciation of either | Oxford Advanced Learners Dictionary
(North American English, informal) ‘I don't like it.’ ‘Me either.’

What does British English speakers say in place of Me either?

[English Freak]

"Me either" is right.
"Neither do I" is correct too. (In this very example) If the sentence is "I haven't eaten lunch", the short expression of agreement is "Neither have I".

[sunsunmoon]

"Me either" is right.

Do you mean that British English speakers say, "Me either"?

"Neither do I" is correct too. (In this very example) If the sentence is "I haven't eaten lunch", the short expression of agreement is "Neither have I".

Both BE speakers and AE speakers say, "Neither have I," don't they?

[bhaisahab]

Do you mean that British English speakers say, "Me either"?


Both BE speakers and AE speakers say, "Neither have I," don't they?

"Me either" is incorrect in BrE.