Meaning of one-reeler

one-reel•er

Pronunciation: (wun'rē'lur), [key]
— n.
  1. a motion picture, esp. a cartoon or comedy, of 10 to 12 minutes' duration and contained on one reel of film: popular esp. in the era of silent films.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.