A very easy task. Getting here was a dead cinch because there was no traffic at all.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. an absolute certainty; an easy thing to do. It’s a dead cinch. I foresee no problems.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.