In Scotland, where the tradition is celebrated over the course of forty-eight hours, April Fool's Day is also known as "April Gowk," "Gowkie Day" or "Hunt the Gowk." "Gowk" is Scottish for "cuckoo" (an emblem of simpletons) and thus, a "gowk" is the butt of any practical joke. The second day of the Scottish April Fool's custom is devoted exclusively to pranks involving the posterior region of the body. This is known as "Taily Day" and the origin of the ever-popular "Kick Me" sign is likely traceable to this observance. The same custom takes place in the Orkney Isles (located just off the Scottish Mainland), where this area's "Tailing Day" is also celebrated on April 2.