Convert from English to Smurf Speak. A characteristic of the Smurf language is the frequent use of the undefinable word "smurf" and its derivatives in a variety of meanings. The Smurfs frequently replace both nouns and verbs in everyday speech with the word "smurf": "We're going smurfing on the River Smurf today." When used as a verb, the word "Smurf" typically means "to make", "to be", "to like", or "to do".!