blot copybook

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blot your copybook

  (British & Australian)
to do something which spoils someone's opinion of you She blotted her copybook by arriving late to a meeting.
See also: blot
References in periodicals archive ?
Working-Storage Section - allows entry of up to eight (8) copybook names and will expand uploaded copybooks for Working-Storage
He hasn't blotted his copybook yet and it's a very open race," added Morris of his winner of the Munster National, the James Nicholson Wine Merchant Champion Chase and the Grade 2 Ericsson Chase.
Copybook parsing for PL/1, DCLGEN, and Assembler simplifies data definition for comparison.
This grand achievement of Modernism now stands for little more than copybook ornament, bereft of any radical signification.
The Swifts have flattered to deceive in the Steel Cup in recent seasons and its omission from Shields' roll of honour in 13 seasons with the club remains a blot on his copybook.
COLWYN BAY 1 BRACKLEY 1 COLWYN BAY blotted Brackley's copybook to earn a notable point as they relieved the Blue Square Bet North leaders of their 100 per cent record.
But even he blots his copybook when Laura's waters break in the middle of a shopping centre.
Paul McManus and David McKenna gave the visitors the lead twice but the Methil ace levelled it on both occasions before blotting his copybook by missing another penalty.
It's a blot on the copybook of Taoiseachin-waiting Enda Kenny - the problem is right smack in the middle of his Mayo constituency.
MEDERMIT blotted his copybook last week at Huntingdon when refusing at the sixth on his second outing over fences.
He blotted his copybook by paying tribute to Gordon Brown's "30 years of public service".
Reigning world champion Hamilton set the third-quickest time on the fifth day of the multi-team test but blotted his copybook when a sudden gust of wind sent the Briton's car plunging backwards off the track and into a tyre barrier.
The latest blot on Shoaib's copybook was when he criticised the Pakistan Cricket Board after missing out on one of the top contracts to play for the national team.
ANDY MURRAY blotted his copybook with several verbal volleys of expletives during defeat to Nikolay Davydenko in Dubai but at least he didn't sink as low as Roger Federer.