Maria: My brother is a silly watchdog.
Bernardo: Ah, my sister is a precious jewel.
Anita: What am I, cut glass?
Bernardo: Ah, my sister is a precious jewel.
Anita: What am I, cut glass?
Maria : My brother is a silly watchdog.
Bernardo : Ah, my sister is a precious jewel.
Anita : What am I, cut glass?
http://www.moviequotedb.com/movies/west-side-story/quote_29499.html