be cocksure of (oneself)

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be cocksure of (oneself)

To be completely certain of oneself or one's actions, to the point of overconfidence. You seem pretty cocksure of yourself—do you really know how to handle that machine?
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Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
Taking the stage just before midnight, the current line-up, led by the cocksure MC Sir Real and excitable, have-it-large demands of founder Barry Ashworth, kept it raucous but tight - Sir Real spitting his controlled rhymes as precisely over the punchy funk of Official Chemical as the trumpet-heavy skank of Revitalise.
It's more a perception of Australia being cocksure over a long period of time.
But that's fine, give me a cynical, slightly depressed UK teenager any day over a whooping, cocksure American kid.
While throwing together guitars, electronics and cocksure rock and roll swagger, the Bristol five-piece mine the same art house 80s vein as bands like Hot Hot Heat and Franz Ferdinand.
IT'S all very well being cocksure of tactics but sexy football does not always come out a winner
The crawling spectacle that is Gerry is the defeat of this cocksure masculinity under the fierce, unyielding hand of nature.
NEVER mind what he's like on telly, here's cocksure star Mark Lamarr in the flesh - biting off more than he can chew.
The professional debunker tends to be cocksure, often shutting off "process[es] of inquiry" because he thinks results are certain.
Dorothy Thompson, the columnist-wife of Sinclair Lewis, was a "vain, shallow and excessively cocksure woman, consumed during the early days of their marriage by an ill-conceived jealousy of his fame...
The cocksure youngster is 66-1 to follow up his breakthrough victory with US Open glory.
Quote: "I'm always described as 'cocksure' or 'with a swagger', and that bears no resemblance to who I feel like inside.
I loved Rex Makin's quote, that the stupid are cocksure while the intelligent are in doubt.
When an old adversary called Parallax re-emerges in the Lost Sector, venerated Green Lantern warrior Abin Sur (Temuera Morrison) is fatally wounded in the ensuring melee and his ring chooses cocksure United States Air Force test pilot Hal Jordan (Ryan Reynolds) as a worthy successor.
Hugh Cornwell's departure in 1990 might have finished a less cocksure outfit.
Here, ghostly lothario Uncle Wayne (Michael Douglas) appears in a loo to tell cocksure, serial bed-hopping photographer Connor Mead (McConaughey) that three spirits are about to teach him lessons about the past, present and future.