0 the activity of dressing up as magical or frightening creatures or as characters from a story on Halloween (= 31 October ), and visiting people's homes to ask for sweets or money:
Dressing up in costumes and going “guising” was prevalent in Scotland at Halloween by the late 19th century.
This is the origin of the practice of Scottish “guising” – a word which comes from “disguising”.
"If it's guising, you're a bit late," she said to them.
The first reference to “guising” in North America occurs in 1911.
