This thesis examines four taboo words (Jesus, God, fuck, ass) used in the films Jaws, Shampoo, and One Flew Over the Cuckoo's Nest. The dominant method of research is semantic, drawing on language theories of I.A. Richards and Alfred Korzybski. Investigation led to these conclusions: (1) Symbolic use of taboo terms is accompanied by positive attitudes, while non-symbolic use, which is more frequent, is accompanied by negative or neutral attitudes. (2) Casual non-symbolic pronunciation is leading to separation of the symbol from its referent. (3) Through this methodology, it is possible to ascertain the speaker's intent and his attitude toward the audience, but not his attitude toward the referent.