one’s best shot

(one's) best shot

The utmost of one's effort, ability, or determination spent attempting to do something. I gave writing my best shot, but I just don't think I can make a career out of it. That was our best shot—let's hope it was enough to fix things.
See also: shot
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

one’s best shot

n. one’s best attempt (at something). That was his best shot, but it wasn’t good enough.
See also: shot
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also: