Trick or treat" redirects here. For other uses, see Trick or treat (disambiguation).
Trick-or-treating or guising is a customary practice for children on Halloween in many countries. Children in costumes travel from house to house in order to ask for treats such as candy with the question "Trick or treat?". The "trick" is a threat to perform mischief on the homeowners or their property if no treat is given to them.