The term
squib is sometimes used to describe a quick
drawing of a visual composition or a proposed graphic solution. A rough sketch to demonstrate an idea. The origin of the term, "squib" as it relates to a sketched concept or idea is currently unknown, but has been adopted as industry slang by
creative directors,
art directors and designers in the creative advertising and marketing communications industries in Western Canada. Other regions/countries may employ different slang terms to describe the same object (sketch, drawing, comp, linear).