be child's play(redirected from something is child's play)
be child's play
1. To be very easy or simple to perform. Oh please, I've been playing guitar for 20 years—that song is child's play.
2. To be insignificant. Those drafts are child's play compared to my latest one—I think I really have a strong argument now.
See also: play
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
child's play, easy as/that's
Extremely simple, easily accomplished. The earliest use of this simile appears in Chaucer’s The Merchant’s Tale: “I warne yow wel, it is no childes pley to take a wyf with-outen avysement.” It was probably a cliché by the time Thomas Carlyle wrote, “The craftsman finds it no child’splay” (Chartism, 1839).
See also: easy
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer