be a dime a dozen

be a dime a dozen

To be so abundant or common as to hold little or no value. In Los Angeles, waiters trying to become famous actors are a dime a dozen. That bird might be a rare sight where you come from, but around here they're a dime a dozen.

See also: dime, dozen

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.