1898, Winston Churchill, The Celebrity Chapter 2, Sunning himself on the board steps, I saw for the first time Mr. Farquhar Fenelon Cooke. He was dressed out in broad gaiters and bright tweeds, like an English tourist, and his face might have belonged to Dagon, idol of the Philistines.
(derogatory) One who visits a place or attends a social event out of curiosity, wanting to watch without commitment or involvement.
(sports, informal) A member of the visiting team in a match.