blot one's copy book
To damage one's own reputation through bad behavior.
Now, it was the College that had blotted its copybook
copy
UK /ˈkɒpi/ US /ˈkɑpi/
noun 5verb 5
Definitions
noun
1
The result of copying; an identical or nearly identical duplicate of an original.
Please bring me at least 200 copies of this report. The photocopier is down the hall on the right.
His new book is out. I have a signed copy. He'll send you a copy if you want one. He's giving free copies to his former colleagues who want one. The press run is 3000 copies, and he hopes to sell more press runs after this one.
2
The result of copying; an identical or nearly identical duplicate of an original.
Every cell in this organism contains a copy of each gene, but whether that copy will be expressed depends on complex factors of cell differentiation and epigenetics.
3
An imitation, sometimes of inferior quality.
That handbag is a copy. You can tell because the buckle is different.
4
The text (words, content) that is to be typeset or similarly prepared and published.
This organization doesn't publish any copy that hasn't been edited by a good copy editor.
5
The text (words, content) that is to be typeset or similarly prepared and published.
verb
1
To produce an object identical to a given object.
Please copy these reports for me.
Don't copy that floppy!
2
To give or transmit a copy to (a person).
Make sure you copy me on that important memo.
3
To place a copy of an object in memory for later use.
First copy the files, and then paste them in another directory.
4
To imitate.
Don't copy my dance moves.
Mom, he's copying me!
5
To receive a transmission successfully.
Do you copy?
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