0 someone who dresses up as a magical or frightening creature or as a character from a story on Halloween (= 31 October), and visits people's homes to ask for sweets or money:
Falkirk guisers should be prepared for wet weather tonight (31 Oct) as rain showers are expected in the town from around 7pm onwards.
The guisers lit their lantern and set off to scare friends and neighbours.
After performing tricks or songs, guisers were given gifts to help ward off evil.
