From Longman Dictionary of Contemporary Englishthat makes two of usthat makes two of usspokenAGREE used to say that you agree with someone or that something that is true of them is true of you too ‘I haven’t a clue what’s going on.’ ‘That makes two of us.’ → make
Examples from the Corpus
that makes two of us• "I'd like to work in Hawaii." "That makes two of us."• Well, that makes two of us, Hilary thought with a little smile as she sat at the table.that makes two of usthat makes two of usspokenAGREE used to tell someone that you are in the same situation and feel the same way ‘But I don’t know anything about children!’ ‘Well, that makes two of us.’ → two 