tsa tsa tzu means: Tsa Tsa Tzu was an expression used in the sitcom sex and city. It is about four women who live in New York. Tsa Tsa Tzu refers to the joy one feels when they are with the people they love. This is like feeling butterflies in your stomach or churning. Tsa Tsa Tzu was used to test whether you had still feelings for that person. Therefore, if the tsa Tsa Tzu was not received, it meant that you were no longer attracted to the person. (in Community Dictionary, added by Jay Vaughan)