blot your copybook
blot your copybook :
blot your copybook
tarnish your good reputation – British
A copybook was an exercise book with examples of handwriting for children to copy as they practised their own writing.
a blot on the escutcheon
something that tarnishes your reputation
An escutcheon was a family's heraldic shield and so also a record and symbol of its honour.
a blot on the landscape
something ugly that spoils the appearance of a place
an eyesore
1962 - Listener - Charabancs and monstrous hordes of hikers are blots upon the landscape.
blot your copybook :
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