A reference to Star Trek IV, from a dialog as follows:

Spock: Your use of language has altered since our arrival. It is currently laced with, shall we say, more colorful metaphors, "double dumb-ass on you" and so forth.

Kirk: Oh, you mean the profanity?

Spock: Yes.

Kirk: Well that's simply the way they talk here. Nobody pays any attention to you unless you swear every other word.