- a wagon, usually large and ornately decorated, for carrying a musical band while it is playing, as in a circus parade or to a political rally.
- a party, cause, movement, etc., that by its mass appeal or strength readily attracts many followers: After it became apparent that the incumbent would win, everyone decided to jump on the bandwagon.
- a wagon, usually high and brightly coloured, for carrying the band in a parade
- to join or give support to a party or movement that seems to be assured of success
