1: The button often put on fact sites, wikis, and image sites that is often placed under the search bar for people who are rather bored and feel like looking at random pages.
2: what people who are extremely bored type into a search bar to see if the website coded in a random page function into the search bar (they usually didn't)
person1: I was really bored, so I went on Wookiepedia and hit the "random page" button over and over...
person2: OMG I did the same thing, but on the Half Life wiki!
person 3: you people are weird...