The phrase uttered just prior to the customary request for candy on Halloween is typically “Trick or.” This establishes the conditional nature of the exchange: a treat is expected, and if not provided, a “trick” (often a harmless prank) might ensue.
This introductory phrase is crucial to the Halloween tradition. It sets the stage for the playful interaction and establishes the expectation of reciprocity. Historically, the concept of “trick or treat” has evolved from ancient Celtic and medieval practices involving guising and souling, where costumes and offerings were involved. The modern phrasing solidifies the lighthearted extortion central to the contemporary celebration.