crowd·er I. \ˈkrau̇də(r), -rüd-\noun (-s) Etymology: Middle English crowdere, from crowde fiddle + -ere -er 1.: one that plays a crowd 2.dialect England: fiddler II. \ˈkrau̇də(r)\noun (-s) Etymology:crowd (I) + -er 1.: one that crowds < that type of fighter, a crowder with both hands milling at all times — Ring > 2.Britain: a worker who loads handmade bricks on barrows