Topic summary
Guising

Extracted from the Wikipedia article Trick-or-treating.
Guising
In Scotland and Ireland (as a result of Scottish emigration to Ireland), "guising" – children going from door to door in disguise – is secular, and a gift in the form of food, coins or "apples or nuts for the Halloween party" (and in more recent times, chocolate) is given out to the children. The tradition is called "guising" because of the disguises or costumes worn by the children. In the West Mid Scots dialect, guising is known as "galoshans". In Scotland, youths went house to house in white with masked, painted or blackened faces, reciting rhymes and often threatening to do mischief if they were not welcomed.